Mark,
it will work in that it will function, but you will never get the convergence or purity to work right.. in short, it will look like crapola. I tried an NOS amp crt in a 6100 chassis w/6100 yoke since I had spares around and its a waste of time. Because of the angle, you cannot get the yoke far enough forward to make the purity 'pure', and for the same reason convergence.
Put out a wanted for a yoke on RGVAC, here, and vectorlist. They are floating around. I accumulated 4 or 5 over about 6 months just asking around.