36 rumble lid lock backer

[johndee138]

I have a Vintique handle that works right but there isn't any bracing behind the outer sheetmetal so the locking pawl has nothing to engage, and the outer skin deforms inward as you tighten the nut on the end of the shaft. Does any one have an idea how to rig it to work or the correct piece to put inside the lid cavity, of course that would be the preferable fix. The lid latches correctly and stays shut no problem.
Thanks, JM