Jeff,your mailbox is full. This is what I wanted to send ya;

You mentioned a Sears tractor w/ an opposed Kohler. Can ya find out the mod #? I have a sears unit made into a dedicated snow plow and have a problem with the steering. If the one you have has interchangeable parts,I may be interested in taking it if it's avail. I don't recall what the final intentions were for this unit. Oh,as far as the engine goes,definitely interested.
Thanks, Joe.