All the PC parts should be compatible on paper but if there is something standing out please let me know. Or if there is a better alternative that I am not aware of, I would love to hear your thoughts. Thanks!
PS. The 6750xt was $379 just yesterday :( Missed my window.
Get rid of that USB wifi adapter and get a built in wifi card in the mobo. USB adapters are horribly unreliable and break often. You could get a pcie wifi card instead too.
I'd go down to a 5800x3d to save money on ram, mobo and the 7900x is a little overkill when you're getting a 6750xt, you could stay in the 7000 series and go with the 7800x3d if you so desire. You could also upgrade to the 6800/6850xt or 7700 for a bit better gaming performance
I would also put more money into the keyboard, it doesn't look mechanical though it is up to your personal preference entirely. I personally would go mechanical.
That was my thought. They picked a top tier cpu with ddr5 ram and picked a mid tier card. They could drop back to ddr4 as well and not have much performance drop from their current setup.
Case and point, your graphics card is going to bottleneck everything so hard.
You can get the 8th best card, the 6950xt for a little over 600$ though you will need to go up to 1000w for the power supply.
You could also go with the 6800/6850xt or Nvidia's 3080 or 3090 since last gen has good discounts.
I don't like going Nvidia but it is an option you can take.
You really just need to pick a price. Something that helps is your use case. If you're going 1440p 165 hz that 6950xt will last a long time. If you're going 4k you will have less legs on the card but it'll still handle a lot. If you're going 1080p you are probably fine with the 6750xt
So for reference, I game at 1440p 144 hz. I have an 11700k and a 3080ti. And it works well. You have to understand (especially if this is your first build) that not every engine is created equal. Unless you're playing older games or stuff like league of legends/Fortnite/rocket league you won't hit that fps cap. But with your rig you should be able to run most games on high/ultra settings around 80-110 frames given how demanding the title is. To future proof as you've said you want to get some life out of the system. I would suggest spending a little extra cash on a 7900xt. I saw some listed at microcenter.com for like $800. If that prices you out of building, then I would look at dropping your cpu, and moving to ddr4. But in total my suggestion would only be $350 more and the performance gain should be noticeable for a few years and it will pair better with your cpu.
You can always start off with a thrift store keyboard for $2, then when you get more money buy a nice mechanical keyboard instead of getting a cheaper one now.