I am not sure what the wing of your plane looks like, but when I converted a little .20 trainer to have ailerons I simply cut the trailing edge that was provided, and turned about 75% of it into an aileron, using the rest as the root and tip TE. I then put in duel aileron servos and a Y connector. It takes a little bit of modification, but it is really easy to do.

I am now on my 7th kit, this one is a Giant Scale Chipmunk, but I have previously built - 3 trainers (4 x 40 size and one 20 sized, two have modifications) a 40 Size Cub, a 40 size Corsair, and a 20 size Texan. My experience is that the bigger the plane the easier it is to build.

I have always found that there is much more joy in seeing a plane that you built your self fly, it is really exciting because you don't know if the 100 hrs you have put into the construction and finishing will pay off until you rotate the aircraft, it is great stuff.

Good luck and enjoy!