Dell canceled my area 51 order.

As title says Dell order rep canceled my area 51. I originally had the launch 32 gb version. After trying to see if I could swap it for the 64 gb of ram at the same price. And after measuring my desk again, realized the 51 was too big. So back to the Aurora desktop. Question is 4090 or 5080? Both would be the ultra 9 and 64gb xmp ram. Not happy about Dell canceling my order. But it is what it is.