Hickok I-177B. And the "restoration" is being taken care of by our mutual friend. By the time it gets to me it'll be functionally perfect and I couldn't care less about a little rust here or there. It's more than likely been through at least one war so the fact that it's all still there is pretty amazing. Plus, I pretty much fell in love when I found the following in the manual.
Indeed, but look at it in all its milspec glory and its ability to test 307As, 300Bs, and all things with glorious octal bases. Seriously though, with ~20 307As to test and only needing to keep 4 I think I can pay for the tester in short order as well as offer help to friends who might need matching services.
I'm assuming you're using the 18ga stuff, right? If so I have some 5/16" NMF that might be big enough to fit the mess inside. Just let me know how much you need if you want to try and pretty it up. I have a spool...
I'm not joking, no dibs, no "calling it", nothing. In the unlikely event that I were to decide to part with it some day I deal with that then. It would be horrifically expensive compared to the Menace, that's all I know at this point.
It help a little more to know what about the 900s that you liked, what you didn't like, what sort of equipment you'll be using them with, what sort of music you like, etc, etc, etc.
You've given us so little to work with that you're not going to get much in the way of help.