what you'll end up with is a very expensive, small, half descent airframe once you swap the FC, ESC's and motors.
The motors I dont like because of the flat spots mean you can only use XA props and they are not easy to balance.
The ESC's I are only 10A I had a few burn out.
My FC never really worked and at its best I could never trust the V8 not to take a wander off in some random direction of its own accord. Absolutely no way would I ever trust it with a camera like a GH2. (which it will carry but with low flight times).
To be fair my opinion and experience is based on what I believe to be, by XAircraft USA'a own brief admission, a dodgy batch of flight controllers, they may well be ok now, I dont know and dont really follow the XA threads
The frame I like, parts are cheap and its quite a good design IMHO. I like the load rail, battery hanger, load hanger and landing skid arrangment.
Have you looked at the XA Hex frame?