no primer will not stick to it, but like I said you have to sand the primer off of the lenses later...if you go much more agressive the sanding scratches tend to show up in the finished lense.
there is a silver dodge ram here in houston with some simple ones in the tailgate they look bad i think alamo did them you might call them see what they tell you
maybe ill go by there, i guess you would have to make custom buckets for the lights to go behind . i wanna shave my stock lights but i just dont want plain old leds