Building a Kadet Sr ARF right now, as a taildragger from the getgo. I'm about 20hrs into this thing and have maybe another 5 hrs to finish.

For the tailwheel, I drilled a hole down the rudder hinge line, and inserted an "L"-shaped music wire down through it to act as a torque rod. Up top, it is tied to the bottom of the rudder. Below, I have a lever arm driving an Ohio tailwheel assembly via pull-pull springs. BTW, I cut a piece of one of the spare pushrod tubes included with the kit to act as a guide tube in the hole. This way, it wouldn't interfere with the elevator pushrod.

Overall, the conversion is not difficult. Tedious, I guess, since I spent half of the time staring at the fuselage trying to visualize how I'd do it. Good planning does pay off, though.

Oh, one important note: if your Kadet was tail-heavy before, the taildragger will likely make it worse. I'm using a somewhat heavy ASP .75 2stroke and it is still slightly tail heavy.

I will try to post pics when I finish.