I hope that GPU from ASrock is good to you, my ASrock Phantom D OC 6900 XT was not great, massive coil whine and hard to cool without insanely loud fan noise.
I've actually had the card for over a month now and it has been perfect.
I am digging the look of your case. Is it going to be able to cool a 7900 XTX?
Oh, I didn't buy that case for me to use, I bought it to put parts in and sell as a full PC. My case is a gigantic Ultra U12-40670 eATX Server Super Tower made of heavy-gauge steel. My PC weighs between 40 and 50lbs because of it but it's made to accommodate a server if needed and can handle PSUs more than double the length of a standard ATX. There's no way that I'd use something else. It's an old-school monster with seven 5¼" bays that open to the front, plus five internal 3½" HDD bays. Even with all of that framing in the front, my RX 7900 XTX fits easily with room to spare. As for cooling, there are two 120mm Cooler Master Sickle Flow fans at the intake and one at the exhaust. Cooling is not an issue in a case designed to be able to house a server.
This is a small picture of it stripped-down but there's no scale (that long slot at the top has a movable support bracket to allow for huge server PSUs):
This video is far better at showing you just how big it is because there's a person there to compare it to:
On the cheap side for high end headphones.
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At that price, those things better come equipped with an airplane!