I would try to find a straight steet front bumper. I can't remember what they originally were on, but they are like a straight blade with ridges on them. If I can find a pic I will send it.
Go with rally or steel rims, painted black or red with chrome beauty rings.
Get rid of the big mirrors, go with the small retro mirrors. The ones that install high on the door frame. You should be able to find them at Moon's, or Speedway's online shop.
Install a bench seat and either tuck and roll the vinyl in red or just put the mexican blanket over it.
Some thin pinstripping on the sides with larger pieces on the tailgate and front hood.
Ok, these are just some of the ideas I would do
Then again, its your truck........ Build it to your taste!
Keep us posted.