I have priced respringing and revalving my forks at GMD computrak and BCM and your $550 is right on par. If your planning on doing track days I wouldn't chince on the suspension since its going to cost you a lot more than your initial investment to restore your bike after a low side because of less than precise settings and materials. I like to wrench as much as the next guy but the crucial stuff I still leave up to the experts. Just my 2 cents.