I forgot about the window screen thing, my uncle had me buy a roll of it when he helped me with bodywork on my '51 chevy, the screen was never used so I still have a 25' roll in the trunk. I think this is my only option that I have on an inside fenderwell on my '51 Chevy too, my uncle pop rivited some aluminum flashing in place but it is heavily wrinkled as it is a compound curve, all I would have to do is drill the rivits, lay the screen over the curve, and do it up that way.