Funny I almost did the exact same thing as you said, sold my digital camera, but I went ahead and got a Hy6 MF camera. Few things you should be aware of:
I'm sure Jobo's are great.. There are a few different models, CPA2, CPE2 and CPP2 are the newest, but only the CPP2 has a digital display and can cool the water bath (you can use ice otherwise but that kind of defeats the purpose of having a jobo in my mind). and They are like 2500$ if you're lucky to find one. They are discontinued btw, so no warranty no repairs etc. I'd be careful about that.
As far as scanning goes, it would be great to have a nikon Coolscan 9000, also discontinued, so no repair no warranty etc. And they are like 4000$ on the auction site. So be careful with those.
Depending on the quality you want, I find it kind of pointless to shoot MF and then scan with a V750, even though the quality is great from what I hear, it kind of takes away from the ultimate quality of MF and Film.. I mean thats some/most of us shoot MF.
Lastly, Ektachrome just took a bullet so we are really getting low on film options, I noticed you only want to stick with b&w which makes it easier on you, but after doing some tests with a whole bunch of colour films I finally chose Ektachrome and now it's discontinued.. so my freezer is going to be full for a while.. So far it's been great shooting film, I have no digital camera so I've been using a spot meter and the zone system to get my exposures right and it's been enlightening. The only thing I wasn't use to is shooting 12 photos and having to swap films. At least with the hasselblaad you wont be paying 2000$ per film back so you can probably get a few and have them pre-loaded. But no autofocus will probably be interesting for you. Before you spend all that money I STRONGLY suggest testing it out first, you might hate it. I can't say I regret the switch BUT with ektachrome gone, no scanner (in the middle of trying to get a drum scanner), and with a new fear of more films being killed I might of maybe kept a digital around as I actually shoot for model agencies and the like and am trying to get more business but I might have shot myself in the foot due to turnaround times and nothing to show the client right away. No polaroids for the Hy6!
Anyway thats my two sense.. Definitely test first you might hate it.