Thanks for the information. Yes, I have done the servo modification with set values as well.
What I am looking for here is a way to hook-up a 2.5mm stereo plug to the camera remote plug. The stereo plug becomes the remote from the camera. The tip is shutter, the ring is focus, and the end ring (2nd or 3rd depending how you look at it) is the ground. Basically you have to close, open, and connect the circuit. This is done using your Rx. Say 50% stick is focus (half press), 75% stick triggers the shutter (full press). This can also be done with a 3 way switch instead of stick movement