1999 Polaris Sportsman 500 – Chunk missing from primary clutch sheave Help!!

So my 2 yr old daughter managed to drop a 12 mm socket down the cvt vent tube while rebuilding the carb. It managed to take a chunk out of the primary sheave. Unfortunately i did not notice until i started the machine. It is the ebs model and seems to work fine still but ive heard they are balanced and so im concerned about the damage that might happen if i leave it as is. It doesnt seem to vibrate any worse then before. I was contemplating filing the sharp edges down so it doesnt tear up the belt but i am nervous. I appreciate your advice and input. I was looking for just a sheave on ebay and cant find any that look the same. I did find some complete primarys but im confused on the ebs vs non ebs and what and what wont interchange. Not to mention the small fortune the ebay guys want. Thanks.

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