Today I attached the two sensor housings to the new RJ10 PCB I made. Here is a detail of the junction PCB showing the two sensor leads attached with tie wrap strain relief:
Here is the assembly showing the two sensors attached:
I decided to attach the sensors to clothing with velcro. This allows me to flexibly configure the sensor positioning as required. I bought some 50mm velcro and stamped holes in it to allow me access to the sensor screws.
I've also designed a small PCB to hang from the gun to allow me to connect a RJ10 curly lead to the sensors:
I just need to make this and the gun is complete.