I think that you will want to work with your dealer to make sure they have a slot available. If so, then order-production-delivery can be like 2 weeks (or worst case it sits at the dealer and drives you nuts!). My dealer had to trade a slot with another dealer to get my X6 but it was no big deal.

Now all that said, you could of course do the Performance Center Delivery with your wife. Would be a great experience.

That does need to be scheduled in advance however - so you would want to reserve the date now (ugh, I think you have to order before you can reserve the date - they keep the car down there waiting for you however - once again driving you nuts).

Good luck!