We just built one to run at Millbridge and have only run one race. Jimmy Elledge at QRC is awesome to deal with and has plenty of parts locally. We built a junkyard dog cr500 for $3500, but thats with a full rebuild and all parts…pipe, ignition, carb etc. The best part is tech which consists of rolling across the scales and driving back to your pit. I haven’t had this much fun racing since open moto in the nineties.