Hmm, I'm unsure what year the engine is from... the bike is a mis-match of parts, a CL frame and CB engine, but I'm willing to bet its a later model engine. Would $50 shipped work? I'm not really sure what these things go for, ebay has sprockets for around $16 shipped, and cams anywhere from $30-$100.
I haven't had a chance to tear down the motor completely, but I'm wondering if the there was any valve to piston interference when the sprocket bolts let loose. I wonder if I'd be better off picking up an entire top end if the valves possibly got bent.
Let me know,
Thanks!
Stephen