I got the info today from TXRX, although it wasn't the identical duplexer. It did give me enough info to get it up and running... still a bit more attenuation than they spec, but it works pretty good.
I was able to mount it inside the TKR-720 (minus power supply). Put three of the 'cans' under the TX/RX, and the remaining two in the area where the power supply was. Built up some rails & used existing screw holes to mount it. Turned out to be a sturdy and compact unit. Thanks for all who responded! Tim
