This Intel CPU pricing is bad compare to AMD as it got no Hyper-Threading which mean only 6 cores and no 12 threads.
Great build, 1080 seem a bit low profile here, with extra cost for 1080Ti should fit this high profile build..
RTX 2080Ti is great for 4K gaming and all with a super 4k monitor you got, I don't see a reason not to get it for this top gear..
Nice build, with the motherboard and a i7 CPU, it would have been a good future proof as you can SLI the 1080 in the future when its price drop.
Design is cool, and I think a GTX 1070/Ti would have been a better value for future proof(1440p/1080p gaming and faster editing) consider the 1K+ overall price tag here.