[Amps] Looking for a Couplate. Can you help?

[Van K7VS]

I am just finishing the rebuild of an AM/CW 4-250A final amp w/AM modulator 
and need one Cetralab Couplate to complete the job.  The one I need is a 
PC-81 unit.  Of course I will buy it if you have one.  I have the schematic 
of these so if can't locate one I will construct one on perf board.  But for 
all the normal reasons would like to find a unit to finish off the project. 
Thanks much.  Van, K7VS