I'm quite new to all of this and currently ordering all the components I need to build a high usage VR ready computer for a business I'm trying to decide what case will be best, I've had some mixed opinions and I'm not sure if these will have enough airflow with an 8600K processor and GTX 1080ti. The sizes I'm looking at are smallish as I want it to be portable. These are the kind of sizes I'm looking at, what do you guys think?
https://www.overclockers.co.uk/parvum-systems-x1.0-coloured-accent-royal-blue-ca-057-ps.html
https://www.overclockers.co.uk/cougar-qbx-mini-itx-cube-chassis-black-ca-013-cu.html
https://www.overclockers.co.uk/parvum-systems-x1.0-coloured-accent-royal-blue-ca-057-ps.html
https://www.overclockers.co.uk/cougar-qbx-mini-itx-cube-chassis-black-ca-013-cu.html