I'm calling the chassis done, I think the chassis is working as well as can be
expected.
I rewired the CRT socket using OEM style cloth covered wire in the correct (as far as I could tell) colors. The old wiring was so cracked and brittle it was shorting to the chassis where it came through the hole.
I also took the focus coil apart and replaced the wiring to it because it was just as bad.
Before
After ( I put all the rivets back in the base after I was sure it was all correct)
After rewiring the CRT socket I was having a problem with a dark bar rolling through the picture and unstable sync. It turned out to be something with the 6AG7 Video Output tube, maybe a bad connection or a bit of solder wedged under the socket, I just pulled it out and plugged it in a few times and it cleared up and became rock solid, the tube is new.
The General Electric 10BP4 that came with the set is very bright and sharp, it had some bad connections in the base but I re-soldered them and it's fine now.
Now I need to work on the cabinet and figure out what to do about the missing CRT bezel. I have a generic 10" mask that I'll probably use until I can find the correct part.
Very short video of it working posted here:
https://www.youtube.com/watch?v=leoliK0yhBs