Body shop quality vs next level

I knew one guy who ended up with a good job from MAACO, in the Quad Cities IA side, like 1993. It was totally as nice as the original new factory, though not show, and it was white, so easier anyway. The key was that he did all the body work himself, got it perfect and to a good primer, pulled all the emblems, bumpers, wipers, trim, and I believe he jambed it himself. That left MAACO to just sand a little, then prime and paint it. I understood that the price goes way up and QC goes way down if you leave the body work to them, and they tape around everything. He just didn't have a spray booth nor climate control nor the experience painting; they did that part fine and for whatever they advertised.