Consider a HW609 fan with a mega motor ACn22/20/1 on 7 cells, zapped. The motor is a special racing version that is bought by special order. Expect about 2.5 pounds of thrust, maybe a little more thrust but you'll have lots of speed coming from it. Get a hacker master opto 70 amp controller, and keep it cool! You may have problems with it if you run it for prolonged periods of time, it's an LMR controller. Do some more research and find what you will like. Most low cost setups are not that powerful, so you're in the money with these setups. If you can run a glow engine without fuss, I may actually recomend it in your case. If you look at items like the Kyosho fan used on the FV-1000, it would be okay if you use two of them, but still, it's not as powerful as you'd think.
http://www.megamotorusa.com
http://www.wemotec.com/index_e.html
http://www.flydma.com/batteries/index.html
http://www.hackerbrushless.com/

Good luck!