I VR game in 4K and do various other stuff, here's my build for comparison:
AMD R9 7950X, £540 (consider also R9 7900X, £390)
EK Nucleus AIO CR360, £110 (I have the RGB version because tasteful colours)
ASUS ProArt X670-E Creator WIFI, £540
Corsair Dominator Platinum 2x32 GB DDR5 6000MT/s, £210...