I wouldn't recommend the x-cube. It's very expensive, and from what I hear, not amazing (although it's still a decent cube). I'd recommend either a shengshou v3 or a dayan+mf8 4x4. As for where you could get them, I'm not sure what would be the best store to buy from if you live in Sweden. I think you might be able to get all of them from lightake, but I'm not sure.
I'm 85% sure it is the V2... mostly because if they're going to run out of stock of any of them it's going to be the old one that's not made anymore. If they're not using generation numbers anymore it will because the old one has been phased out.
Until recently it was hotly contested between the Lan Lan and the V2a (non-pillowed version)
But recently people have been raving about the Type C/Wit2