Juice,
You've done good work here! Another benefit to the single-point actuator rod on the torque rod is that there is no pressure on any bearing surfaces. A pull-pull with the standard top & bottom cables would need a bearing surface of metal on the leading edge of the torque rod to prevent slacking of cables with use.

Now a real challenge... how can we actuate the flaps & ailerons with the controls completely internal? Mine is a .60 size Curtis P-40 model.

Obviously, what we're trying to do here is hide those ugly control horns.

Fred