What cooler are you going to use @Dave2150 ?
Coupled with which memory, and NVME?
Initially, a Noctua NH-15S Chromax (on par if not superior to 280mm AIO's). I'm going to build a custom loop in the next few weeks, as these seem much fun to overclock, judging by other threads on overclocking forums! I've got a contact that'll offer a delidding service, so will get up to 12°C lower temperatures once that's done (https://www.youtube.com/watch?v=rUy3WcDlBXE)
Memory kit - Will start with my 32GB 3600Mhz C14 kit. My Z170 board could only run it at stock (motherboard doesn't support any higher) - so will get a chance to see what it'll overclock to on the Maximus Hero XIII.
SSD - 980 Pro 1TB, with 3 970 EVO's in the other slots