Hi, yes, I see the Kodak body on eBay; however, there was an auction for a Kodak not long ago that sold for just under $1k. The current Kodak 645 BIN item only comes with the back for $1600, while the one that sold for under $1k came with everything. As such, I think that the $1600 one is way too expensive.
I am looking to use this on my Mamiya 645AFD body. I was thinking about the PXX digital backs, but they seem to be a bit more expensive and I am on a somewhat tight budget. Thank you for your response though and I wish you the best of luck finding one as well!