Spent a good couple hours getting the plywood off the frame. No better way to do it than crawl underneath with the grinder and cut the bolts off. On each end of the plywood is also a wood screw...hate those 1950's flat head screws, no qucik way to getem out other than the screw driver.
The frame is in worse shape than I thought it would be. I guess the building technique back in '54 was to lay a blanket of fiberglass over the entire frame and put the plywood down on top of it. This thin layer of fiberglass that ended up between the plywood and the top of the steel frame was a great collector of moisture and the tops of my steel frame members are very rough in some areas.
I quit for the day when I just about sliced off the top of my thumb
...NOTE TO NITWITS: Wear Leather Gloves!!! Another warning...when laying under the beast cutting off the elevator bolts, they are very hot when they let loose...makes you squirm when they land on your legs...and yes thankfully I was wearing a thick pair of Carharts