Most of the trusted dealers on the forum should be able to get it for you. I got the V2 from King on RWG a couple weeks ago and love it. I haven't seen a gen in person however the quality of it is amazing and based on the pics, almost identical to the gen.
Look out for mastrmindalliance's review of it on RWG http://www.rwgforum.com/topic/113740-review-carrera-calibre-1-v2/.
The rep is that good and is wearing really well that i'm keen to find a gen somewhere as it's a fairly timeless design and the fact only 6000 were made I think it would hold it's value fairly well.
I think the main V2 difference was the closer to gen case/bezel height. mastrmindalliance's article or the following posts list the updates in the V2 version from memory.
Regarding the case colour. The gen only came with a polished SS case. It's confusing because the Tag marketing photos make it look black which does look good. I got the polished SS one to match the gen and it looks great. I think it would look better than then Black/DLC one in person.
Correct. The 2nd one is a fantasy model. They also look like the V1 version as the bezel is thicker also that site isn't a trusted dealer as far as I know. Most of the trusted dealers should have the V2 version so you're best emailing a couple and inquiring if they can get it.