[Milsurplus] power supply for KWM-2A

[Mike Davidsen]

I don't have my General license yet, and my Elmer has given me the
incentive: if you get your General Class, I have an extra Collins KWM-2A
sitting around I'll give you as a present.  Great!  Catch is: no power
supply.  Are the power supplies for these rigs available anywhere for a
decent price?  The ones I see on eBay are either beat up pretty bad,
untested (read: old dried up caps and burned out tubes), or too high a
price.  

Second question: is there a schematic online of the power supply needed for
this rig?  I can wire one up myself if need be, especially since I would use
modern components that would perform better than original.  Thanks for any
info you guys can provide.

Mike Davidsen
KI4JSC