I have a Phase One 645 DF and I think about selling it. Not much used (I'm private), so it's in fine condition, optically + full working. Works well with Liveview from the back (if you have a back which offers this).
Firmware 1.58 (should be the last version)
price: 975 € plus shipping (shipping with DHL from Germany; to most european countries it should cost round about 15.99 €)
It would come with the original box, battery-cage, but no lens. If you need one: I still have my new 80mm Mamiya AF-D.
And I will keep the L-plate you can see on the picture. But you will get all covers (front-/back-side).
I'm a private guy, so it's a private sale (I can't give you a warranty or anything else).