I just got a Sig Kadet Senior ARF and I have a couple of questions. With everything that I have read about having to add a lot of weight to balance this plane, especially if it is converted to a tail dragger (which I am going to do), what do you think about putting a Magnum 80 four stroke on it? I can always throttle back! Any advice on the size of the main gear for a tail dragger conversion? This is my first plane after a 6 year break, it's good to be back....