After months I spent yesterday working on this. It's a roller again, for the time being. I uncovered some rusty spots yesterday. In attempting to swap out one front cab support I found issues. It looks like i'll be sectioning and replacing the outer of the right outer rocker panel, the front pillar where it bolts to also needs replacing.
Also while cleaning up the firewall I removed the previous owners fiberglass drip channel in the firewall drip channel, revealed a rust hole.
I took this vid of the days work, check out the spot welds on the firewall. So deep, 2 hole that go right through!? But no rust there?? I'm sure the firewall is original. So odd that this factory defect wasn't at least filled with sealer?