Since the RTR has stickers where the lights go, I used a pure acetone based nail polish remover and some q-tips to take the paint off behind the sticker in order to allow the light to shine through.
For the headlights, the body was somehow cracked in the headlight in shipping so I removed the light area with a dremel sanding disk and cut some lexan circles and glued them in place before I put the buckets in. All in all, I think It looks pretty good.
Fix the light buckets in place with some hot glue and your are good to go! All you need is, 2x 5mm white LED, 2x Red 5mm LED, 4x 3mm yellow LED and 2x 3mm white LED a light controller and you are golden!
Check out the Video: