Please blow up photo and look at the A pillar near the top of the window. The rats had a nest between the header panel and cab. There is rust through in this area. I’m worried about how to form a patch panel for this area and it’s complicated by the inner structure of the A pillar. Any advice will be greatly appreciated. There is one more area in the center of the cab directly above the windshield . This one will be much simpler as it’s not double walled in that area and the panel is much simpler. The rest of the truck is excellent so replacing the whole cab doesn’t make sense. Thanks again.