depends on how crazy you want to get, how good a bodyman you are and also the theme or look your going for. I've seen the old teardrop ford lights, mustang lights, caddy lights, chevy sighns, newer chevy tails. the old caddy bullet tails. You name it I've seen or done it.
Give me some information on what look your trying to acomplish with the truck and I'll tell you what would be a great asset to it.