[nsb29]

If you want it right you should do a dry run and make sure everything fits,Then take it apart do you bodywork and put it back together for final fit. I wouldn’t worry about the bed lining up with the cab there are two separate pieces, it’ the doors fenders Hood that you want properly aligned. The part I would be concerned about is whether the paint is going to match if he is panel painting it. If it is a metallic it should all be painted assembled at one time, if it’s nonmetallic then you’re OK you can paint the parts separately