The ABA-1transceiver built by GE offered here includes $200 worth of hard to find connectors! This IFF system was used in all sorts of Army and Navy aircraft during WW-II. After the war it was a very popular Ham Radio project for conversion to 440mhz band as a conventional transceiver.
The unit is clean and includes all the tubes.
Obviously the unit has not been used in years so I cant guarantee it to work, but would not be surprised if it did.