Get you some clear packing tape for the damaged covering, if it isn't tooo bad. You might try removing some of the covering around the break on the vertical, piece it back together making sure that it is straight and put some thin CA all along the break and then put on some new covering. Put some new hinges to the elevator and you should be good to go.

Keep in mind that it is a trainer and if flown like a trainer will not have the forces applied to it that an aerobatic plane would be subjected to so the quick fix to the vertical should hold up pretty well.

Good luck,