If you havent checked out
www.towerhobbies.com go there and check out the trainers and compare the prices you will be able to get a complete RTF for under $300.00 (superstar, tower 40 trainer, and avistar come to mind).
After getting an idea for the market prices go to your local hobby store(s) and see if they will price match, most will, or at least come close to tower. I think supporting local hobby stores is generally good, they can be an invaluable resource (now and down the road). But if you dont get good service or they seem to be unreasonable go with where the prices are best, after we are capitalists!
Good luck!