I am restoring a car which was missing the steel panel which goes behind the rear seat. I have located the panel, but it does not have the mounting brackets/hardware needed to mount it to the car at all 4 corners. Does anyone have these parts available for sale? I will need every piece, including all brackets, hinges, clamps, and attachment hardware required to attach this panel to the car at all 4 corners. This car does not have a fold down rear seat, although I am told that most of this hardware is the same as the cars with fold down seats. Thanks very much for any leads you can give me.