Someone localish to me was talking of producing cb500 racer frames, had made a few and builds custom machiney for a living so some do race stuff of similar age. Cost wise it's a matter of how many of these are there at that speck, looks like a standard bike with a few bits added at a casual glance over, then it's a matter of assesing condition. I cann't see why fit the different brake. Doesn't say much detail about engine, tuned or not but if the jettings not right and standard then it could be fun and games to get right
