Crash'em the Kadet rudder is on top of the horizontal stab. It's difficult to get a linkage to a standard tail wheel.

I purchased a converted LT40 and the previous owner used a scale tail wheel and put a tiller bar ( in essence a straight bell crank) at the back end of the servo compartment. He linked pull pulls from the tail wheel to the tiller and then a pushrod from the rudder servo to the tiller when the rudder moved the tail wheel moved.

Beef up the area under the forward bulk head and install you main gear there. Use a stamped aluminum sheet type and four screws works well.