11/23 and 11/73 compatibility

Hi all. In order to make room for an 11/44 I'm giving away a PDP-11/23 with two RL01 drives. I have a bunch of spare Q-BUS cards for the 11/23 and I wonder if any of them are compatible with the 11/73. You see, I just got an 11/73 which is quite empty (a CPU and some memory) and I don't want to give away something that's useful in the 11/73. So, here is what I got for the 11/23: Memory: M7506, M8043, M8044, M8047, M8059, M8067 Peripherals: M7513 RQDXE RQDX extender for RQDX2/3 M7941 DRV11 16-bit parallel line unit M7954 IBV11 IEC general purpose M7957 DZV11-M 4-line double-buffered async EAI MUX M8013 RLV11 RL01/RL02 disk control 18-bit M8014 RLV11 M8027 LPV11 Printer interface module M8061 RLV12 RL01/RL02 disk control Other: M9401 Bus extender? M9400-YB Terminator (11/03) M7942 MRV11-AA Space for 4K 16-bit PROM M7952 KWV11 Programmable realtime clock If I've understood the matter correctly the 11/73 can utilize 22 bits of the Q-BUS but the 11/23 only 18 bits and that means that some cards are 18 bit only and others 22 bit only. I think I will hang on to the RLV12 and RQDXE, anything else? It would be great if the memory was compatible. Thanks in advance, Pontus.