I have always provided the trainer and all the equipment for the first day then asked the student to provide there own fuel. That way if they don't want to go any farther in the hobby they aren't out any money. Several of the pilots I fly with that instruct do the same thing. I only have one electric plane and it isn't a trainer so I use a 60 size glow powered plane. I like electrics but have never had a trainer. Once you solo you will have a better idea of what you want and how deep you want to get into the hobby.