Looks great. Do you mind if I ask how you've wired the corsair fans up? hoping to do something very similar myself. But unsure if need a commander pro or not.
I do have the commander pro installed.
Also Using the lightning node which comes with the ll120 fans also.
I have full rpm/rgb control of up to six fans, although the H100i v2 has synced fan control (2x120mm ll120).
I Would highly recommend the commander pro if you want full software control, the ICue software can also do 0rpm mode on any one of those six fans or all at once.
Easily the best fan controller I’ve owned.
Check out the Corsair forum for full wiring diagrams and many different setups.