I currently have a sanction 3.0 2008, which has Durolux SR Suntour forks, and fox Float rear suspension. I was going to buy my friends Marzocchi bombers, and I wanted to know how much I should sell my forks for on craigslist. They are in great condition, and I got my bike new in 2010. I was also thinking about changing my rear suspension to spring, but I don't know which one is better for downhilling. Thanks, Austin Green