Just find an old Action Man even a barbie and slice it up...... alot of my pilots are old action men cut in peices just paint them and stick them in a cheap alternative to buying one......... just raid some kids toy box its amazing what u find lol......... (just dont tell the kid)

Ever checked Ebay ? alot of bargins can be had on thier just go to the radio controlled section and type trainer....... i know ebay in the uk u can pick one up for about $90 for the airframe and engine, of course u will have to add ur own radio gear.....