Well......
There is the SIG 4 Star 40. It looks pretty goofy out of the box but I know that you can make a cool cowl and re-shape the cannopy. Check out
http://www.renderwurx.com/rc/sig4star/ for a full review and modification guide. You could also maybe use your engine from the trainer.
Oh yeah, the arf is $150 if you get on the dealer net from sigmfg.com
Hope this gives you an idea