Yessss saw that, i am from Germany so shipment is no problem but:
error when you torn the back on (invalid calibration)
Re: CF39
The calibration issue is software, it needs to be connected to a computer and a calibration image taken and stored. I have a P25 that needs a calibration (slight magenta cast on one side), but I have not done it as finding old working hardware (Firewire400) and software to do this can be challenging (but I'm working on it!). In the mean time, I have a LCC applied automatically in Rawtherapee. As the seller says, it works fine with that warning.
The back was available with various plates that allowed you to connect it to different cameras, this one has the Hasselblad V and Mamiya RZ (like I said before, I'm interested in the RZ plate). It was made by Imacon around the time Hasselblad bought the company.
The Multishot is a studio feature, results in very nice files, but requires tethering to hard to obtain old hardware.
On a large format back, you can use the Hasselblad plate, and a Hasselblad to 4x5 adapter (I might have an extra one of those). You need 2 cable releases, one on the back to wake it up, one on the lens to expose.
The Hasselblad H P25 you listed can do that too, but it will not fit your Hasselblad V bodies, only the "H".
The CF39 uses CompatFlash cards.
The Kodak sensor is pretty nice, it was one of the last CCDs that was good for long exposure night and astro shots.
I'm in Canada, and have no issues with the extra shipping costs from Europe or Asia. You being in Europe makes this a nice option as you won't get additional VAT costs (I think!)...