Looking for 12v pump and cam gears

I think mine is ok. I don't see any abnormal wear patterns or defects. I just priced one to see how much. If it was under $100, I'd have bought a new one.
 
I have an engine that I'm building that the cam gear started walking off the shaft and I guess that broke some teeth off the cam,pump and vaccum pump gears. High rpm on stock cam with no retainer.
 
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