The mizzen being a standing lug would behave like a sail on any normal model yacht, you would just need one control from the boom to a servo to let the sail in and out depending on whether you were tacking or running before the wind. The big dipping lug on the foremast is a different matter. If you look at a picture you will see that a lot of the sail goes forward of the mast and it has a wooden yard all along the top side of the sail, the head. When tacking, the sail and yard has to be brought round so that the whole of the sail is on the leeward side of the mast. This is a major job on the real thing and I don't think could be replicated on a model. Apart from that, the sail being loosefooted (no boom) you will just need a sheet from the clew of the sail to a servo to control it. (as with the mizzen) Mind you, there are some very clever people on this forum who may tell you otherwise. If you would be happy seeing her sailing on one tack all the time, then you won't have any problems, that really means sailing one way and coming back on the motor with sails flapping. Hope you understand my explanations, it's all rather difficult to give a simple explanation. If I can tell you anything else please ask, only too willing to help.
All the best, Nerys