All right so after some issues with door alignment, I got the driver side inner and outer rockers welded in.  
 

I intended on cutting out and replacing the rear subframe mounts while I had access, but they seemed solid so I opted to clean up the rust and paint them instead.  I was also still a little scared to have alignment issues after the doors.  I’ll spray some cavity wax in there too for good measure.  
 

so here’s what I started with: 

And how it turned out.   I’m not super pleased with my fab work.  But I think it could be a lot worse, and should hold up fine.  I guess time will tell.