Just finishing up building 2 12600k systems. I like how much cooler they run than my 5950x. My build is much cheaper than yours, I went with B660 motherboards that were half the price of that Z690. Z690 feels like a waste if you aren’t going to go DDR5 and if you aren’t going to try to overclock the processor(which even I have given up on due to diminishing returns and how well they can boost themselves). Don’t forget good thermal paste and to check QVLs. Also, check out EVGA P2 power supplies that are on sale on EVGA and Newegg. They are made by Superflower, who are one of the top quality manufacturers currently. I would also probably go for 1000 watt. The 3000 series Nvidias have “issues” where they have transient spikes in power demand, which can cause issues if you don’t have the extra 2-400 watts overhead. Also, being middle of the curve means you increase your efficiency