Where abouts in Michigan are you? My local dealer is pretty good, and has been able to get stuff to mount older style plows on newer trucks. Is your mount the older 3 pin style, or the newer two pin style?
Found a place in N.Y. state, Heavy Haulers that fabricate a 3 point mount that bolts right up to the frame mount for my truck, works great! Was $395 including shipping, beats spending the $1100 that Sno-Way wants for their so called conversion kit!