Can anyone identify the vertical brace material under the deck lid hinges? The same material is used on the diagonal braces under the package tray. It is 2" wide, about 1/2" thick, and about .040" thick. This picture was taken in the summer of 65 so it's original. I have photos (summer of 65) of three other Aamblewagon builts cars with the same braces. Is this a Chrysler Part? Or is it some commercial metal that Amblewagon had laying around from their ambulance conversions? Trying to duplicate an original car.