now, you need to fix coordinates of the headlight, which is quite a pain in the butt. You need to play with headlight slot in main.cfg of the car and
slot 0.473 0.113 1.770 0.000 0.000 0.000 7 ; L_headlights here. these coordinates must be flipped and used in the main cfg. so basically you need to find your headlight slot in main.cfg and instead of zeros use -0.473 -0.113 -1.770 0.000 0.000 0.000 7
and in your cfg use 0.000 0.000 0.000 0.000 0.000 0.000 7
Last step to do is play with the third coordinates to get the pivot positioning right.
P.S. if you want, you can send me the car and i'll try to fix it.