Similar experience with Plano, too. I got "lucky" when I called about 2 months ago, and they had the exact car I wanted incoming but with a $5K markup. Funny, they actually called me today after ignoring me these past few weeks after I said I wouldn't pay that, but I'd be more than happy to place an order.
I actually put in an order with Alliance back in August '22, and I have no update from them to this day, so I don't rec them because you'll be waiting. And I personally had a bad experience with Moritz. They took my order last Aug, too, and when I called to check in after 6 months, they never placed the order.
I did get lucky with Grandbury. I'd called them about 3 weeks ago, and they had an incoming of exactly what I wanted, so I put a deposit down ($1K, refundable, MSRP), and within that hour, Huffines reached out and said my car would be in that week. Weird experience technically having two cars. I was able to help someone else out by letting that order go and giving them a heads up. Grandbury is probably a call and see what they have kind of dealer. I've heard people on here say they are low volume and orders take awhile. But, I do think they are really nice so maybe worth a shot.
Corinth has a $2.5k dealer package, but I pass by them nearly every day. Today, they had about 10 Tellurides on the lot - this is after months of seeing them hit the lot and gone within a few hours (I think production is catching up). Maybe worth to call and negotiate, if they allow that.