G'day Kerberos32,

I was alot like you i grew out of my trainer very quickly i think it was around 3-4 weeks of flying around ripping up the sky, i would recommend a Scanner they are a small Low-wing plane and only cost 100 bucks (Australian) which is like $75 U.S as for a motor for them they will happily take an O.S 46LA (Very cheap and good motor) they are pritty fast and very aerobatic they will take anything you can throw at them, not the best looking Low-wing but quick none the less.

I hope this helped alittle

Happy Flying
Paul