My grandson loves to fly RC airplanes. He recently was given a aspire glider w a 72" wingspan that had crashed. The fuselage was damaged and replaced. It does have a motor and the servos for the glider but nothing else. Are there any recommendations for the the esc, receiver and battery. We currently have a 4 channel GWS transmitter. Our knowledge on RC electronic's is very limited. Any recommendations on these items. Thanks