If you want to dump BR to use JF, I highly suggest going the 1h/mojo way.
There's a point where upgrades for a 2h build are so expensive it is not worth it anymore, and going the 1h/mojo way is just better.
Before I sold my WD's pve gear (the gear you see has been my pvp set, which pBeybq copied. wtf.), I calculated on d3up with an impossible 1700 dps skorn, 6ls, 200 chd, etc etc. and I was losing both mana regen, ehp and massive DPS.
With the 1h build, I wasn't using any kind of mana regen passive and I could stand still channeling bats and actually GAIN mana. Add GI and GF to that, and laugh at your blue orb trying to go down.
Now, let me point you to the right 1h/mojo combo.
If you have pickup range on other pieces (Minimum 7, as this is CoB-hitting range), you can pickup a 49-50% Damage (this is important !), 90+ CHD, 2.9-3 LS, 185+ int, 990+ DPS (Hit over the 1k bar if you're rich), open socket Manajuma's Carving Knife. You will want a Marquise Ruby in there. It will outdo the emerald by a few thousand DPS.
As for the offhand, you should get a Zunimassa's String of Skull. Highest damage possible of course, with a good Crit roll, good int roll and either vitality or another roll you'd like. The mana regen on there works wonders with the Zuni set bonus, and the String allows you to drop one of the other droppable Zuni pieces; Helmet (the 100 max mana isn't very useful as your Mana bar doesn't even go down. You can drop this for an eHP helm such as Tal Rasha's if you use tal's amulet and gain +3% Firebats damage !), chestpiece (though I don't know what you'd do that) or the zuni pox (unless you can afford a trifecta, high-crit Zuni Pox, a rare ring will always be better. If you don't like attack speed, this is even more of a good change.). The Zuni boots are, of course, mandatory.
The other choice, if you're a billionaire, would be to use Zuni's Helm, Chest, Boots and Ring, and grab a Manajuma's Gory Fetch as your offhand. Technically, if you get a really good roll on these, the +130 int set bonus coming with the knife/mojo duo is the best you can get.
Finally, you'll feel you are really casting smoother but the lack of LS might give you trouble with Reflect Damage affixes at first. You need to learn to use Spirit Walk and then burst them down.
Let me know if you have any question; Ontario#1271
Also, 1h/mojo holds the higher DPS, while Skorn is really just about the LS.
Edited by Ontario#1271 on 7/16/2013 5:48 AM PDT