Yep, I'm part of the Waiting Club too. Ordered a SLT Gas with the dealer 11/5. Truck was built week of 12/7. 12/11 has a VIN. 1/8 still sitting in the Ravendale, Mi Rail Yard for the train to Winston-Salem.
Like mentioned earlier the dealer is no help. Called dealer for a status 12/23. Said he'd call me back. 1/14 still waiting for his call. Unbelievable on a $70k truck when I laid ALL the specs out for the order from the website and can't call me back. The GMC Chat has been my source. Check once a week. Not like I really need the truck, but with virus. It's something I'm looking forward to. Last GMC LLY is now 17 years old, so it's been awhile for a new truck.