RE: Best engine for Sig Kadet LT40
If you're building it then it's easy to convert to taildragger!
Mine has an OS .46AX and a 12.25x3.75 prop, since I fiberglassed the wing joint I get to have fun with it. Last night I ripped out my main gear in a very close call, I'm just lucky that it hit the ground flat. Good old disorientation/control reversal.
Honestly, it's really a .60-sized airframe, so you could go nuts with it.