I've been looking at eBay. CFV-39 prices are still around USD15k, while CFV-16s in good condition are hard to come by. There's one going for around USD5k, but there's something wrong with the firmware, and I'd stay away from it. Check Phase One - they have some older V-mount backs, but they are hard to come by
to be honest, given the amount of money you're going to be spending, and since you (or your dad) and I will be walking down the same path (ie. trying to get digital to work on an old hassy), here's the advice I got - don't waste that money since it's not going to be a fun experience.
On film, you get away with images that aren't pin sharp, but on an MFDB (which I have learned to much dismay), you need damn good focusing if you want great images (unless you're shooting landscapes, in which case you just set for hyperfocal distance).
Which is how I ended up spending the money meant for a MFDB for my 500CM on an AFD II with a Leaf Aptus 65S (28MP back, 16-bits/channel, ISO50-800), and actually NOT regretted it. In fact, I just ordered a film back for my AFD II.
I would not recommend getting a H-series back (tethered operation), but to consider getting a P-series back instead. We're talking easily SGD9-12k for a back. See
http://www.digitaltransitions.com/showNews.php?id=30 . They are based in the US and are official Phase One distributors with a good reputation. They also have a couple of V-backs that would outperform the CFV-39 any given day of the week, for less than the $15,000 eBayers are asking for.