Thanks Chryco. I checked the clearance by installing the 4 bows using the center holes, they all reached close to or touched the underside of the roof skin. I talked with Nick at Nicksclassicparts. He did his two mopars one with and one without insulation. He recommended some sort of insulation. So I went ahead and glued in one layer of inch thick quilt backing from the crafts store, kind of a polyester type stuff sort of like house wall insulation but not as dense/not as tightly compacted. The quilt backing did NOT have the itch factor like the house insulation so made it easy to work with. The material comes 48 inches wide, and various lengths. The 48 inch width is a perfect fit on the underside of the roof skin, and I cut it 53 inches long. Sprayed 3M high strength trim adhesive #90, several coats on the quilt backing and two good coats on the sheet metal (required 1 and 1/2 cans). By the time I was done spraying on the adhesive it was time to bond the quilt backing to the sheet metal, so it sets up fast at 80 degree F. Started attaching the backing just behind the front windshield support stiffener, and had to trim off about 1 inch or a little more above the rear window. Ordered headliner, sail panel cardboard, and carpet from Nick.
