Terry, some years ago I had a camshaft for a Moto Guzzi metal sprayed and reground here in South Aust, at this stage I cant find the receipt but will keep looking. That camshaft had done a little over 200,000ks when i sold the bike and was showing no signs of wear. So if its done properly they last forever, obviously a lot better than new as the bike had only done 50,000 when the cam wore out. If you have any trouble finding someone to do it let me know and I will ask around and see if I can find out who does them.