Now that amazon has their holiday return policy active I feel comfortable starting to order stuff, so I took another look at the parts on my list. The lian-li aio I had on my list wasn't reviewed as well as I would have liked. There were complaints about failing pumps, bad software, and failing LEDs. Pumps may actually be failing because of the software. I saw multiple people saying the software wouldn't detect the pump at start up so it'd either not turn on at all or it'd be spinning at max rpms the entire time. I took that stuff off my list and replaced it with a deepcool aio. I'll save some money, still have a bunch of rgb, and still have fans that can be daisy chained together. Plus the deepcool aio doesn't need any software. I can just control it all through asus aura.
Then since I eliminated the need for extra software with the aio I decided that I'd do the same thing with the ram. I took the corsair ram off my list and replaced it with some teamgroup ram. The rgb on that can also be controlled with asus aura.
I joined /r/mffpc and the asus ap201 is all over the subreddit. Definitely seems to be the most popular m-atx case out there. I didn't know that before I picked it, but I know it'll be a good one now.
I won't have it built for a couple months, but these are the parts I'll be getting. I already have the GPU and PSU, but there's a chance I get a different PSU.
Looks like a pretty solid list. I would suggest picking up a new PSU that's ATX 3.0 since you're going with a 7900 XT.
Maybe AMD fixed things with the 7xxx gpus, but (maybe you remember from CSB thread) my 6800 XT didn't get along with my Corsair 850W and was causing all sorts of hard crash issues. Upgraded to THIS GUY and no problems since. Bonus about that particular PSU is that the plugs are on the side, which made cable routing and management SO much easier.
Potentially useful reference