Have a cruise through the plans links on my web site
www.nex.net.au/users/rwood scratch building these things is a breeze once you get the hang of it. I have a little Sukoi that is basicaly a bit of 1" thick foam hacked in to a profile with depron control surfaces and a sort of symetrical wing. cover the lot with packing tape and hey presto.
Flies great on one of those BP21 CDR motors and 3cell LiPo.