It depends on how much work you want it to be. You said you like to build things? The SIG Kadet Senior, aside from being a large airplane with 78" wingspan, has a built up fuselage vs balsa sheet sides like most trainers and the nose starts out as solid balsa blocks that have to be cut and shaped. It is alot more work than most trainers but when finished it is a beautiful and easy flying airplane. (the kit is 3 channel, I modified the wing on mine and added strip ailerons)
Here is a picture of my Kadet: