So I am thinking about selling my current car to get a new one. Among the ones I am looking at is the '90 Quattro Coupe. I want to end up doing an S2 conversion to it. My problem is that I am unsure where to start looking for one. There are two here in Colorado but I was hoping for more sites that would give me a better selection. Do you guys have any sites that you use to find older cars?

Thanks in advance.