I haven't built a new computer in 10 years so I decided to treat myself. Build went smoothly and all components were fully functional on boot. Runs Witcher 3 on all Ultra settings at 60 fps without issue.
I would still like to buy an adapter and RGB splitter so I can make full use of the Aura Sync function on the motherboard; would also like to buy a few more case fans. Temps have been fine even with extended use, but it's winter and ambient temperatures may be higher in the summer so I would like to prepare for that.