If you can handle shopping just once a year the best place is the Blade show in Atlanta first weekend in june. you can get virtually anything you want or need. multiple vendors are there not just knife parts but also vendors selling grinders, belts and other machinery. you can see and handle the stuff before you buy.Its maybe a 10-12 hour drive from Coldwater. not bad if you can get a couple guys to go with you to split the gas. if you dont want to spring for a hotel you can crash at my place, its not the crowne plaza hotel, but its free.
God Bless
Buck