I'd start by combing the Neimans, Saks, Nordstroms, and high-end retailers within a 50-mile radius. Because these bags are so wanted, the waiting lists have been filled for quite some time. I think about the only chance that you will have to purchase one "right now" is if someone drops out of their spot on the list or decides not to purchase it. Unlikely, but worth a shot.
You could always try ebay, but chances are you'll be overpaying for a real one from a trusted retailer for the sake of peace of mind. And from what we've learned about online retailers, that's a valuable thing ..