There is no good way to do this using consumer grade hardware and WDS repeating just does not work very well.
You should start out with high power wireless access points like the engenius 3054cb3
http://www.keenansystems.com/store/c...products_id=24
They will give you about 3000 feet of coverage in an open areas.
You can bridge to remote locations using another access point conencted to a wireless bridge with a directional antenna pointed back at the first AP. You must take care to use non overlapping channels 1,6,11 for the ap and bridge.