I don't think that you'll have a problem. The thing with ARF's that are not straight from the factory is that to fix it, it means tearing into it quite a bit and recovering it. That's a lot of work,
and if it's real bad, you should just send it back.
My last ARF was a Lazy Tiger P-51 from Thunder Tiger. It has a very bad twist to the aft end of the fuse. Check out the pic. I got this kit new and unwrapped but at a swap meet, so I didn't bother trying to send it back. I just made sure the tail surfaces were on straight and it flies very well. On its maiden flight, it just needed one click of right aileron to have it flying hands-off! Without seeing your model firsthand, I can't comment on how it will perform. Odds are, it will be fine.

Jesse