Nice diagrams Minnflyer! For simplicity, flaperons are really appealing, and might give you all the extra lift you need, especially if they have enough chord. From an aerodynamics perspective, I prefer separate flaps and ailerons, to assure that you retain aileron authority at low speed. This is definitely not a problem for every plane, but the low speed situations in which one would use flaps are the kinds of situations in which aileron authority can be a problem.

banktoturn