Paintjobs: I read into it, and according to the stuff I read (some San Andreas Op-Code site), the paintjob ID's are from 0 to 5. Anything higher adds some funky sh1t to the car for a paintjob!

And, Car part ID's: (From veh_mods.ide)

1000, Generic Spoiler
1001, Generic Spoiler
1002, Generic Spoiler
1003, Generic Spoiler
1004, Bonnet Scoop?
1005, Bonnet Scoop?
1006, Generic Vehicle Roof-Scoop
1007, Generic Vehicle Side Skirt (L)
1008, Nitro - 5 Shots
1009, Nitro - 2 Shots
1010, Nitro - 10 Shots
1011, Bonnet Scoop?
1012, Bonnet Scoop?
1013, Round Fog Lamps
1014, Generic Spoiler (Large?)
1015, Generic Spoiler (Large?)
1016, Generic Spoiler
1017, Generic Vehicle Side Skirt (R)
1018, Curved Twin Cylinder Generic Exhaust
1019, Twin Cylinder Generic Exhaust
1020, Large Generic Exhaust
1021, Medium Generic Exhaust
1022, Small Generic Exhaust?
1023, Generic Spoiler
1024, Square Fog Lamps
1025, Off Road Wheel.
1026, Sultan Side Skirt Type 1 (L)
1027, Sultan Side Skirt Type 1 (R)
1028, Sultan Exhaust Type 1
1029, Sultan Exhaust Type 2
1030, Sultan Side Skirt Type 2 (R)
1031, Sultan Side Skirt Type 1 (L)
1032, Sultan Roof Scoop type 1
1033, Sultan Roof Scoop type 2
1034, Elegy Ehaust type 1
1035, Elegy Roof Scoop Type 1
1036, Elegy Side Skirt type 1 (L)
1037, Elegy Exhaust Type 2
1038, Elegy Roof Scoop type 2
1039, Elegy Side Skirt type 2 (L)
1040, Elegy Side Skirt type 1 (R)
1041, Elegy Side Skirt type 2 (R)
1042, Broadway Side Skirt (L)
1043, Broadway Exhaust type 2
1044, Broadway Exhahst type 1
1045, Flash Exhaust type 2
1046, Flash Exhaust type 1
1047, Flash Side Skirt type 1 (L)
1048, Flash Side Skirt type 2 (L)
1049, Flash Spoiler type 1
1050, Flash Spoiler type 2
1051, Flash Side Skirt type 1 (R)
1052, Flash Side Skirt type 2 (R)
1053, Flash Roof Scoop type 2
1054, Flash Roof Scoop type 1
1055, Stratum Roof Scoop type 1
1056, Stratum Side Skirt type 1 (L)
1057, Stratum Side Skirt type 2 (L)
1058, Stratum Spoiler type 1
1059, Stratum Exhaust type 2
1060, Stratum Spoiler type 2
1061, Stratum Roof Scoop type 2
1062, Stratum Side Skirt type 1 (R)
1063, Stratum Side Skirt type 2 (R)
1064, Stratum Exhaust type 1
1065, Jester Exhaust type 1
1066, Jester Exhaust type 2
1067, Jester Roof Scoop type 1
1068, Jester Roof Scoop type 2
1069, Jester Side Skirt type 1 (L)
1070, Jester Side Skirt type 2 (L)
1071, Jester Side Skirt type 1 (R)
1072, Jester Side Skirt type 2 (R)
1073, Wheel Arch Angels Wheel type 6
1074, Wheel Arch Angels Wheel type 3
1075, Wheel Arch Angels Wheel type 2
1076, Loco' Low Co. Wheel type 4
1077, Loco' Low Co. Wheel type 1
1078, Loco' Low Co. Wheel type 3
1079, Wheel Arch Angels Wheel type 1
1080, Wheel Arch Angels Wheel type 5
1081, Wheel Arch Angels Wheel type 4
1082, Transfender Wheel type 1
1083, Loco' Low Co. Wheel type 2
1084, Loco' Low Co. Wheel type 5
1085, Transfender Wheel type 2
1086, Stereo Bass Boost
1087, Hydralics
1088, Uranus Roof Scoop 1
1089, Uranus Exhaust Type 1
1090, Uranus Side Skirt type 1 (L)
1091, Uranus Roof Scoop 2
1092, Uranus Exhaust Type 2
1093, Uranus Side Skirt type 2 (L)
1094, Uranus Side Skirt type 1 (R)
1095, Uranus Side Skirt type 2 (R)
1096, Transfender Wheel type 3
1097, Transfender Wheel type 4
1098, Transfender Wheel type 5
1099, Broadway Side Skirt (R)
1100, Remington Misc. Part 1
1101, Remington Side Skirt type 1 (R)
1102, Savanna Side Skirt (R)
1103, Blade Roof type 2
1104, Blade Exhaust type 1
1105, Blade Exhaust type 2
1106, Remington Side Skirt type 2 (L)
1107, Blade Side Skirt (R)
1108, Blade Side Skirt (L)
1109, Slamvan Rear Bullbars type 1
1110, Slamvan Rear Bullbars type 2
1111, bnt_lr_slv1, slamvan,  (Something to do with the bonnet?, not used.)
1112, bnt_lr_slv2, slamvan,  (Something to do with the bonnet?, not used.)
1113, Slamvan Exhaust type 1
1114, Slamvan Exhaust type 2
1115, Slamvan Front Bullbars type 1
1116, Slamvan Front Bullbars type 2
1117, Slamvan Front Bumper
1118, Slamvan Side Skirt type 1 (L) 
1119, Slamvan Side Skirt type 2 (L)
1120, Slamvan Side Skirt type 1 (R)
1121, Slamvan Side Skirt type 2 (R)
1122, Remington Side Skirt type 1 (L)
1123, Remington Misc. Part 2
1124, Remington Side Skirt type 2 (R)
1125, Remington Misc. Part 3
1126, Remington Exhaust type 1
1127, Remington Exhaust type 2
1128, Blade Roof Type 1
1129, Savanna Exhaust type 1
1130, Savanna Roof type 1
1131, Savanna Roof type 2
1132, Savanna Exhaust type 2
1133, Savanna Side Skirt (L)
1134, Tornado Side Skirt (L)
1135, Tornado Exhaust type 2
1136, Tornado Exhaust type 1
1137, Tornado Side Skirt (R)
1138, Sultan Spoiler type 1
1139, Sultan Spoiler type 2
1140, Sultan Rear Bumper type 2
1141, Sultan Rear Bumper type 1
1142, Oval Bonnet Vents (R)
1143, Oval Bonnet Vents (L)
1144, Square Bonnet Vents (R)
1145, Square Bonnet Vents (L)
1146, Elegy Spoiler type 2
1147, Elegy Spoiler type 1
1148, Elegy Rear Bumper type 2
1149, Elegy Rear Bumper type 1
1150, Flash Rear Bumper type 1
1151, Flash Rear Bumper type 2
1152, Flash Front Bumper type 2
1153, Flash Front Bumper type 1
1154, Stratum Rear Bumper type 1
1155, Stratum Front Bumper type 1
1156, Stratum Rear Bumper type 2
1157, Stratum Front Bumper type 2
1158, Jester Spoiler type 2
1159, Jester Rear Bumper type 1
1160, Jester Front bumper type 1
1161, Jester Rear bumper type 2
1162, Jester Spoiler type 1
1163, Uranus Spoiler type 2
1164, Uranus Spoiler type 1
1165, Uranus Front Bumper type 2
1166, Uranus Rear Bumper type 2
1167, Uranus Front Bumper type 1
1168, Uranus Rear Bumper type 1
1169, Sultan Front Bumper type 1
1170, Sultan Front Bumper type 2
1171, Elegy Front Bumper type 1
1172, Elegy Front Bumper type 2
1173, Jester Front Bumper type 2
1174, Broadway Front Bumper type 1
1175, Broadway Front Bumper type 2
1176, Broadway Rear Bumper type 1
1177, Broadway Rear Bumper type 2
1178, Remington Rear Bumper type 2
1179, Remington Front Bumper type 1
1180, Remington Rear Bumper type 2
1181, Blade Front Bumper type 2
1182, Blade Front Bumper type 1
1183, Blade Rear Bumper type 2
1184, Blade Rear Bumper type 1
1185, Remington Front Bumper type 2
1186, Savanna Rear Bumper type 2
1187, Savanna Rear Bumper type 1
1188, Savanna Front Bumper type 2
1189, Savanna Front Bumper type 1
1190, Tornado Rear Bumper type 1
1191, Tornado Rear Bumper type 2
1192, Tornado Front Bumper type 1
1193, Tornado Front Bumper type 2

Things to note about this:

None of these are of any use ATM, as neither ChangeVehiclePaintJob, or AddVehicleComponent work, because the trucks in LokelYokel were supposed to have NOS, and custom rims,and they dont! (And i've run a command on every vehicle in my gamemode, attempting to install every single part avaliable(Even paintjobs), none worked.) >=(

(L) = Left side only , (R) = Right Side only.

I cannot guarantee that the types of parts for "Type 1" and "Type 2" will be consistant throughout this file, however, I'm pretty sure they are