That is some good thinking about mounting the rudder, elevator AND tailwheel servos rearward.

At first glance, using a separate servo for the tailwheel seems odd, but considering the mickey-mouse setups we can use to connect the rudder and tailwheel, it may be a simpler solution. For example, on my (small) Flyin'King, my rudder servo is in the rear of the cabin (designed location) and operates the rudder via a Sullivan Goldenrod. An extra link goes from the rudder servo arm to a bellcrank, which has a pair of Kevlar pull-pull cables back to the tailwheel. That is a standard setup, but still complex.

Ya done good.

--Bill