Thanks. I figure I should replace both sections while I'm at it. I think 1500 and 2200 should be close enough to the original 1480 and 2140.
I managed to get the yoke and FC off so I can try it out on the workbench with a test CRT. There's clearly a weld where it was rebuilt and the yoke was reluctant to slide over that portion of the neck. Some slow careful rotating back and forth did the trick.