Yes, that would work. But not sure what you mean by "non-duplex version of the arrow". Do you mean "no duplexer"? If yes, then YES. The transmit radio will connect direct to the transmit yagi feedpoint. The recieve radio will connect direct to the receive yagi feedpoint. Two radios, two lengths of coax, and two physical antennas. Note that this could still be a problem when operating a V/U satellite like SO-50 or LilacSat-2. The Rx frequencies on these satellites are very close to harmonics of the Tx frequency, so desense is likely. But many have solve this by using a duplexer anyway (for just the downlink).