Re: steering stablizer for 03\' pred
Actually the Polaris Predator 500 is the only sport quad at the moment that comes stock with a steering stabilizer. If you find riding it still harsh you should hop on a raptor, z400 and 400ex and will realize how blessed your steering is.
As for huge ruts I ride in similiar terrain with ruts as deep as 2' 1/2 feet from +44" offroad truck tires. Just be careful and take it easy around them :P