You would think you guys could have gotten it running by now.....lol. That is a good run that most could never top. Congratulations on the life long friendship.
I like it as is. I have done most of these mods and many more to,my blue Challenger. I say it is your car, do as you wish with it. There are already too many boring stock restorations out there. However, I do enjoy them as much as anyone. They just all start looking the same after a while.
My favorite is the 70 R/T longitudinal side stripes with the hood black out. My blue Challenger has them. My red Challenger is coded for them also, but now has the rump stripe which is my least favorite but wanted it for something different. I like the 71 R/T side stripes also like on my 12...
No, it will not fit with a 15x8 with only a 3-1/2" back spacing. I run 295/50/15's with 15x8 with a 4-1/4" to 4-1/2" on 6 different wheels and tires sets on my cars.