Clutch keyway and bushing

[r_chez_08]

I sold this clutch on eBay to find that the buyer had found a damaged keyway. It worked fine with me??? Anyway, is there any way I can repair the keyway suitably for resale?? It is a 20mm clutch and has 6 shoes

 

[Kaptain Krunch]

picture of damage?

 

[r_chez_08]

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?VISuperSize&item=220606444864
it is barely damaged