Hello, I'm an old RV'er and have owned my '76 International with rear bath for several years. I've intermittently worked on restoring it due to job transfer. I'm now started back on the project. I'm stumpted by my upper rear wall damage. It started out cracked but now has a piece missing. I stop drilled one crack, but during the move it cracked again and a piece fell out. The Airstream Dealer in Dallas, TX told me I could use the bath/shower repair kits to repair it. I have been unsuccessful in locating a new panel...
Anyone with a solution? I'd appreciate it.