I have two 42" Troy Sickle mowers I use in my business for overgrown areas. I need to find a supplier for sickle sections and rivets for the cutter heads. This mower is not made anymore and the parts are drying up. It is a German cutter head and uses metric sections and rivets. Anybody got a source for these parts? They are great machines that will cut anything, I hate to junk them for a lack of parts.