I am struggling to find a new or gently used surface wrap (net wrap) top roller. Mine has a small gash in it and was looking to replace it. I have called many aftermarket places with no success and John Deere wants over $5200 for the roller assembly. My baler is only worth $4000.... the JD Part number is: AE74463. Any help would be appreciated. My Surface wrap unit Serial number is: E0SWR4X985783. If I could just get the rubber roller and replace bearing with aftermarket bearings, I would be good with that too.