Steve D. - We actually did look around the basement there and even in a chest behind the TV. Didn't find anything else unfortunately
Phil - Thanks for that link. I'll be checking it out later.
Rod - I plan on making a video of it later on.
And now the good news: I finally was able to test the CRT. Definitely under vacuum, of course. No G1 and H-K shorts. Things were looking good already when I went to adjust for cutoff. Got to emissions and holy crap: all 3 guns are showing 100%. I figured it would have at least been asleep, but nope. All 3 guns were reading 100%, even with the life test function lowering the heater voltage. The CRT tester is setup correctly. In the picture, I was just testing the blue gun.
So this CRT is practically brand new. This is looking very promising.