I too was going to suggest the SIG Four Star. Available in 40, 60 and 120 size.
If I where you I would also invest in a good simulator. Not only to get your thumbs back without worrying about crashing your real bird but also to practice whatever aerobatic maneuvers you want to learn.
If money is tight at least get a USB cable for your radio and download the free FMS simulator (not as good as other sims but better than nothing)