The GP PT60 will be a good trainer. Even the so-called smaller trainers are fairly large. The Sig Kadet Senior has a 78" span or 80" in ARF. The Sig LT40 is 71". A lot depends on whether you want to build or buy an ARF. If you have no building experience I would recommend almost ready to fly. There are several good ARF's including the RCM Trainer from Hobby People as well as the Sig LT40. Whatever the recommended engine size step up one notch. If they say .40 go to .46. It shouldn't be necessary to increse the size of the engine in a PT60. Most importantly FIND AN INSTRUCTOR !! Go to the field where you will be flying and talk to the pilots there. They will probably have some recommendations of their own as well as pointing out the pilot who instructs. You will also see the add ons that are necessary such as fuel, starter, rubber bands to hold the wing in place and other little goodies. See what the locals are doing. If you copy them they will be pleased and flattered.