Why doesn't Trio offer a "headstart" package as others do. It would be great if one could buy just the "hardware" for my a/p, alt/hold etc instead of forking over for everything at once, where the brains sit in boxes for two years atrophying.
Lorne, I'm pretty sure you can purchase just the servos and wiring harnesses for the Trio EZ systems. That would allow you to do all the fabbing of the mounts and wire runs. Mounting the control heads in the panel is a job that only takes a few minutes once the holes are cut (all the templates and dimensions are available on the Trio site).
But......to get the real scoop, call the three amigos at Trio for first-hand info. They are a great bunch to work with and will get you headed in the right direction.