In fact, I already started fixing the problem. Now going to remove surface rust from awkward places with phosphoric acid. Perhaps these are the last repairs that require welding. I don't dare say that anymore.Hit what you can with a wire brush and then saturate it inside and out with a "rust converter" sprayed from a pump up garden sprayer. Spray inside panels with a thinned out asphalt roof tar after the rust converter sets. Use "kitty hair" filler as your base filler.......If you don't drive in saltwater it should go at least 10 years before the rust comes bubbling back.
Also I ordered today laser cutted pieces for front and rear bumpers.