I was helping a friend with his '65 today when he showed me some minor rust in one rear floor panel. When I had first heard about it, I imagined the worst for all four floor panels. We pulled the carpet out and the other three panels are virtually perfect, not even any surface rust. The rear passenger panel has two small holes, one smaller than a dime, the other about half that size, that are about 3" apart. The odd thing is that, other than the holes, the panel is in good shape with some minor surface rust on the top. I figured there was further damage in it and pushed and probed with a screwdriver, scraped with a scraper, and the rest of the panel is solid. We ended up grinding all the paint, top and bottom about 3" around the 2 holes and the panel is solid. The question is, should we replace the entire panel, buy a panel to make a 5" patch to cover both places, or patch the two holes individually? I could take a 1" hole saw and easily cut out the two bad places, then make two patch plugs with the same saw to weld in place. I'm still surprized that the damage appeared completely limited to those small places. Any ideas?