Another update, mostly so that I can keep track of what I've been up to and figure out what I was thinking in a few years when I'm still working on this.
Lots of work travel this month has slowed me down, and the next few weeks will also likely be slow, but hopefully will tackle a few major disassembly steps in the next 2 weeks.
Since the last post, I pulled off the front fenders (which were welded on at the bottom. This is kind of interesting, since I've found other areas where metal was brazed in, so I was thinking whoever did the previous repair didn't have a welder. There was also generous use of bondo
After pulling off the front fenders, I stripped some of the undercoating to see how bad the rust was in the front fenders and the passenger side had more widespread rust, but the driver side seems solid
On the driver side, the rust seems to be concentrated in the bottom of the front door support. It looks like I should be ready to replace the front fender support and rear door post
The real treat was finding that the inside of the B-pillar was returning to the earth