I did mine.

take out the lights
take out the bulbs
preheat the oven at 400degrees. Used broil
turn off the oven and put the headlight in
wait for 5 minutes
take the light out
open the light
take out the housing. take out the orange strip if you want to
cover up the parts where you dont want to paint
put on some primer.
paint it.
put everything back together
seal the opening with lots and lots of silicon
wait for the silicon to dry
put the lights back on the car

your done