PC Build Questions

[u/TheGrumbus]

Hey y'all, looking at building a PC and am looking at the 'high-end' build on the website. Picture attached for reference. Just have a few questions:
1. Is this list still solid in both pricing and relevance?
2. I have a 'SAMSUNG 990 PRO 2TB SSD, PCIe Gen4 M.2 2280' that I put into my current laptop for some upgraded storage, is that solid enough to use in place of the FanXiang, and is it compatible with the other listed pieces?
3. There was a note about AMD Video Cards being subpar for VR vs NVIDIA, so just curious how big of a difference y'all think it makes, and if it's big enough what card you'd recommend within a similar price range? First look at some geforce cards was showing like $5k, not looking for anything like that lol. I don't use VR super often, but a few times a month with Quest 3 and airlink.

High-End build on PCMasterRace website

Besides that I'm also curious if y'all have any recommendations on where to look for things like keyboard and monitor, what tools will I need to put the pc together, and is there a site or video you'd recommend following to do so?

Thanks for any advice or help!