You'd probably get more money out of it if you parted it out and sold the pump, control valve, cylinders and brackets seperately. I scrapped two of those Dearborns out and sold another for a 12 Pack of Pale Ale. They are really not worth much. Maybe a couple of hundred bucks if real nice and not all cracked and welded on. It's also worth more if it is still on the tractor and the buyer can see it function.
I sold this loader yesterday - 4X the loader your Dearborn is and no cracks anywhere. It just needed paint. Buyer helped me take it off the tractor. I got $650 for it.