be it that i am the Aerotech guy i should probably be telling you to jump up to a 100cc airframe and build one of mine!!! LOL BUT, realizing that you are in the 50cc market... it is pretty difficult to beat anything by mr. hinson at EF and ben at 3D Hobbyshop. these are great planes and they are backed by great service!!!! pick one of these companies and you won't be disappointed.
that's just my $.02....
(you should still build one of our airframes as well!!! lol)
matt