It's not hard to add barn door type ailerons to a model. You start with a properly built wing per the plans, then cut out the ailerons from it being sure to cut the straight and both the same. Then you cut 3/8 more away from the wing so you can add it back as a balsa trailing edge. Do the same to the aileron pieces (3/8 or 1/4 depending on their thickness and what it will take to make a nice bevel) and then cover and hinge. Anybody that can build a kit can add ailerons.
Of course, if you're going to do that it's helpful to reduce the dihedral to 1/2 of what it should be without ailerons. That's a but more involved, but not much more.