I don't know actually. The one email I've gotten from them doesn't say anything about it, other than that it's coming via international airmail.
I think it took a bit less than two weeks for CS1 to arrive, and that was during the busy holidays, so I imagine it's going to take around a week with CS2. Hope they ship it tomorrow.
Yeah, it's long. I would imagine that even if you played on a lower difficulty (or otherwise have no problems with the game) and skipped most/all of the side content, it's still going to take you like 50 to 60 hours.
My honest advice is, don't rush. Take your time with it, do the side quests, talk to NPCs, get immersed in the world. Don't focus on finishing it before CS2 is out. It's going to be a much more enjoyable experience.
e: hahaha my god, I literally just got the 'order shipped' email from them while writing this post
Here by next Friday? Fingers crossed, would be fucking amazing