I know it’s an expensive hobby - I’ve learnt that lesson from flying lessons which frequently rinse my bank account 
hence why I do NOT have the money to blow on a 4090. topic thread £800 GPU. 4090 is twice that!
CPU - thanks for the 7900x3d suggestion! How about raising the question of 7900x3d or 9900x?
GPU - 4090, as mentioned, is out of reach. I could maybe stretch to a 4080, or comfortably get a 7900xtx.
RAM - looking at Corsair Vengeance DDR5 5800 and deciding on 32, 48 or 64gb currently. Will likely upgrade this a few months down the line either way.
PSU - not settling for anything less than a 1000w gold unit either way!
case - I’m planning on a NZXT case and a 360mm corsair heatsink.
Monitor - going for two 27" MSI 1440p IPS displays.
I mean I have a budget of 3k MAX including PC, monitors and peripherals (excl mouse). If you want to shoot a list over - go for it!
I appreciate the long response (even if it is a copy and paste haha)