I am about to take my truck down and turn it into a complete restoration project. It currently has stock 6.2 no modifications at all. I was thinking of adding a turbo and switching from manual 4 speed to automatic. Thoughts and suggestions on this would be great. Also, I want to switch out the rear end. Currently I have a Dana 60 4:10 in it. Where would be the best place for interior pieces (seat, carpet, etc.).