the tower trainer 40 is a nice plane (i have one and just bought one for my dad), it should go nice with the O.S. As far a fuel is concerned i don't know to much but i do know that you can run car fuel in the plane engines. The guy who is teaching me runs Traxxs top fuel, he said that his 4-stroke runs better with it, and the 2-strokes also run good with it.