Okay, here's the latest...

The pics show my interior with all components installed, and the turret with all the components that are needed to finish the mod, but not installed in their end locations.

The fittings on the solenoid are 10/32 x 5/32 "slip-fit". These accept the 5/32 O.D. coiled tube. The tubing can rotate once pushed into the fitting, so the rotation of the breech will be no problem. However, the breech also has to move up and down, albeit slightly, so the coiled hose comes in handy here. Now, on the inlet side, we have a simple 5/32 flexible, not coiled, tube coming from the regulator located in the lower hull. I put a half loop in this tube for the sake of turret rotation. I still need to make a bracket to hold the solenoid in place and make a system to get power to the solenoid. Any ideas on that little booger would be welcome.