Thinking of buying a parts truck just to mock up the interior parts on. I ofund some companies that make floormats out of diamond plate and sheets as well but I want to check with my buddy first and see what he can get. I hope I am not under thinking the dash. I think an 80/20 frame bolted up to the firewall and sheet metal skins would be super easy once you figured out how to mount the frame. For those not into 80/20 it is an erector set for engineers with 4 channels on each stick that can mount almost anything too. Not super cheap but I really want a clean looking interior in this. Thinking of taking out the carpet and using bedliner then insulation and then either direct bolting the diamond plate or mounting a few sticks of 80/20 with a few cross supports so I can run wires etc. later.