Simplest soloution is to build your own, or have some custom built. Then you can have exactly what you want. You'll find that the quality of the build is more important than the price of the wheels or individual wheel components. Whenever I build offroad SS wheels, I use Alex Adventurer rims (a bombproof rim which can be bought for $20-$30), double butted Wheelsmith spokes, and a decent but innexpensive hub such as a Surly. You can buy more expensive parts, but none of it will really amount to a better wheel.