[MRCG] need power connector

[Dave Sampson]

hello
 
new to the group here.
 
looking for a piece of un-obtainium.
the original round, 115 volt a/c, 3 pin male,  power cable assy. or just the plug that connects to the center receptacle on the rba/rbb/rbc power supply.
 I have already tried William perry, fair radio, surplus supply, army radio sales, ebay ect..no luck.
does anyone have one or know someone who might?
 
thanks
dave