Avistar
My daughter (then 7) learned to solo with an Avistar/ys 53 combo. Nice little airplane. We had to add a 1/16 wire brace to the main landing gear to keep the legs from spreading. Toe in on the mains improved take off tracking. Ours needed a two oz weight at the tail for balance. The covering on ours was the self stick stuff but it held up for several years, several young pilots, and hundreds of flights. With the cg toward the front it is very stable. Cg moved back inproved the rolls/point rools, ect. Several learned the Novice and Sportsman pattern with it. Good luck.