So I've ditched the fan grille, louvers to the rescue!
I've also started modelling the wire paths

Here's a quick canvas render:
Parts now ordered:
EK-Quantum Kinetic FLT 240 DDC PWM D-RGB - Plexi
EK-CryoFuel
EK-Quantum Velocity D-RGB - AMD Nickel + Acetal
EK-CoolStream SE 240
Noctua Redux NF-P12 *3 - Also ordered grey anti-vibration corners, annoyingly only 16 in stock so I'll have to wait for more stock.
Bykski 3070 waterblock for the MSI Ventus 3X
Various black Barrow hardline fittings
Undecided on PETG vs Acrylic tubing - I'll do some more research!