It's coming along. I finally brought the cab home from my dad's hangar. It's a whole lot easier to get motivated when I don't have to drive an hour and a half. Plus I can weld without worrying about my dad's painted floor.
Pretty much everywhere that there was metal to metal I found corrosion. This repair is where the bolt-on cab corner to fender connection is made.
The running boards are in great shape. It's the mounting channel that was full of dirt and moisture. Still haven't figured out what do do there.