Wanted: working 5AXP4 CRT

Hello,

There's probably a 'swap' board on this forum, as I'm an absolute newbie I'm not able to find it as yet.

I'm restoring an RCA 721TS, including recapping; this happening 'long distance' through the superb technical help of an expert on vintage TVs in Ohio. I need a 'test CRT' to check on how the set is performing step-by-step. The set's original 10BP4 is a bit cumbersome, and I was looking for something smaller.

If anyone has one for sale out there, that would be great.

Thanks,

Skyliner