I'm not sure which signals you want to use, but in a similar scenario, we wanted to find a less expensive way to connect up many BD4N block detection modules around my friend's basement. Since the BD4N outputs use only five of the 10 pins, I found some six conductor ribbon cable in bulk with the correct pitch. I then separated the ribbon cable in between two conductors so that the appropriate pins would be connected when the 10 pin connectors were crimped on. Using gray ribbon cable instead of individually colored conductors was a huge saving too. I'm pretty sure I got it all from Digi-Key.