Minor update – picked up a nut splitter from Harbor Freight, only one they had was a large one. It was useful for removing one nut… one… for a $10 tool. Ended up removing the other two nuts with the air-powered cutting wheel. Now the dash is free of excess parts, and I’ll probably try to find the time to pull off a few other pieces to take over to the powdercoating shop to get media blasted and a primer / protective coating on.