Picked this 400 up for $1650, which is an amazing deal. Only thing wrong with it mechanically is the clutch slips at the top end. Went out and bought a new clutch pack, springs and gasket for $50 bucks. Works like a charm now.
The tires on the back came mounted to it, but they were Yahama rims with the Honda pattern drilled by hand into them, which at speed made the tire on the right (as if you were sitting on it) wobble like crazy. Got new 8x8s on it, picked them up for $30 a piece.
The very first thing we did when we got it home was we took the baffle out of it, because, who in their right mind wants a quiet quad?