Nice car! Just finishing up a rotisserie resto on my '74 'Cuda as well. I only needed a few pieces of sheet metal, got it through Year One, it was good quality, can't remember the brand. One thing that I can't recommend enough are the US Car Tool subframe connectors. They are cut to match the contour of the floor pans, no cutting into the pans, and they make a huge difference, I like them a lot.