Very nice outcome - looks sharp with boxart paint, sparkling new shocks and the original wheels.
Regarding the cutout at the front, I would aply some edge band (not U2) but U-shaped plastic/rubber band in black.
I allways cut the body before painting it, not very proffesional but it´s easier to fit it that way. The cutting lines on the repro bodies can be vicious.
Now to solve the problem with Your chrome wheels and the extra set of suspension arms - Build a Turbo Optima
Edit: I forgot, please don´t remove the chrome. There´s not many chrome plated wheels around, so it should be easy to swap them for a set of whites.