Jay: Mostly it is just going to be custom paint job for the interior. I will be adding a shift light, boost gauge, engine temp guage and oil pressure guage. Might add seat belts and some 12" (to scale!) speakers in the rear with some itty bitty tweeters in the front.
hAnGoOkNoM: I will definitely be lowering it. I don't know how much, because I haven't gotten that far. I don't think that I will have to lower it that much because I will be using 18" (to scale) rims.
Just remembered that I'll be making custom mirrors that have less wind resistance.