I was at an auction this past weekend where a non-running 600 with loader and backhoe went for around 600 bucks. A little rough around the edges, and there were a LOT of edges....soundguy said:gonna go look at a ford 640 with a loader for the stepdad tomorrow I think. something cheap he can leave up at his farm and not have to haul one out each time.
will post some details if I bite..