I just recently moved to Ft Collins Colorado and I haven't rode in a few years but I want to start riding again a little bit so I can hit up the skateparks here. I was wondering what stock bike I could find for like 4 to 500 bucks or if I'd be better building a bike for more and if I should build one how much would I be spending? I can crank out some extra cash but I want to save money for college.