Welcome to a fabulous sport.
I'll make this one short and sweet. I have built several plane with no ailerons, with no real difficulty in handling.
The main thing to remember is to have some dihedral- key here being some. 3 to 5 degrees is more than enough.
I have even built a couple of low wingers with only rudder and elevator. As long as the middle of the "V" the wing makes is around the center of thrust,you'll be O.K.

E-mail me if you would like to talk about this or other model subjects in depth. I design and build full size planes as well as models, and I'm still here to talk about it!