I have a couple MD421-U5's here with sequential serials, in dead mint condition. Original boxes, cases, paperwork all in as new condition. They look lke they've never been used. $820
Photos in flickr album below.
https://www.flickr.com/gp/thedreadpirateroberts/Kg7pFY
Photos in flickr album below.
https://www.flickr.com/gp/thedreadpirateroberts/Kg7pFY