1. Get a Ryzen 7800X3D instead of your 14900K. The 3D-V Cache delivers superior gaming performance. Get a motherboard that comes with the features you care about, but don't go overboard. You should not be buying a 500 dollar motherboard for a 500 dollar CPU. I would strongly recommend you get something more modest. Spending more than $250 dollars on a motherboard is a waste for the majority of users, especially if your machine will be mainly used for gaming.
2. The ROG Ryujin is an extremely expensive water cooler. You can find better AIO's for less money, but if you are buying it for the ROG brand, and you are willing to pay that premium, then stick with it.
3. There are faster memory kits that will play better with Intel for more money. Look for a kit with 6400 speeds, just make sure then latency doesn't go much higher. If you decide to switch to AMD, get a kit with lower latency for maximum performance.
4. Your SSD choice is fine, but you might want to take the money we saved on the CPU and motherboard and put it towards a mechanical drive for affordable mass game storage. Something like an additional 2TB HDD will serve you well for storing easily recoverable data like games.
5. With all the money we saved by going with a less expensive CPU and motherboard, we can afford to step up the GPU to something like the 4080 Super. I understand you went with the ROG brand on your 4070 Ti, but the 4080 Super starts at $1000.00 at MSRP, and it doesn't make sense to go with a 4070 Ti at $920.00, so I swapped it for a cheaper 4080 Super card from PNY.
6. The case is a little on the expensive side, but it is completely subjective, and just like the AIO, if you're willing to pay the premium for the case you want, it will serve you just fine.
7. The power supply is a little overkill, and you would be just fine with a cheaper 850 watt unit from Corsair. I would only stick with the 1000 watt unit if you plan to do some aggressive overclocking, add lots more storage and memory, or upgrade the CPU later down the line.
I have linked a PC Part Picker list
here that outlines all the specific components I picked. You'll notice that despite the extremely expensive AIO, pricey case, and the extra money spent on the faster GPU, we were able to add an additional 2TB of SSD storage with well over 200 dollars left over. You could take off the additional SSD, throw in a cheaper 2TB hard drive, and put that remaining 400 dollars into a fancier motherboard, more memory, or simply keep the cash you saved in your wallet.