[amsat-bb] G-5400 az rotator repair

I picked up a G5400 az-el system. I discovered, though, that the entire resolver assembly inside the az rotator is missing. Apparently, it was a "repair in progress" that never got finished. I called Yaesu and got a replacement gear, but they no longer carry the resolver pot.

Anyone have an idea on where I can get one?

p.s. I'm not actually subscribed to the amsat-bb list, so please CC me directly on replies.

Thanks.