How did you make out with the roof header? I was checking my 57's roof rust around the top of the windshield. It is rusted through the outside above the glass in the center and a small spot near the right windshield post. I took a screwdriver and pushed on the inside header in the same area and sure enough it was all rot. It is also fulled with chewed up seat cushion and mouse crap. I think I will try to find a header cut from someone and weld it in. Have you made any progress on yours?