The NH-D15 allows you to shift the fans to give you some additional room for high-rise RAM. I had to do this when I put the parts together.
One thing to watch out for is to be wary of XMP. I ran into some issues getting the OC and XMP to work simultaneously with the auto-configurations. You'll need to adjust the settings in the UEFI.
Some of the prices are suspect. I understand you are in Norway and consumer purchasing power is different, but I also believe there are much thriftier ways to obtain 1080TI's than buying them at a $300 premium. While I'm impressed with the raw power of this build, I cannot agree with the outrageous price tag.
I have virtually the same build at $2K! That's just not right!
I haven't had issues with that monitor. I know there is a FreeSync monitor from Acer that is also 144hz for a little less.
Everything is black. It's also the name of an anime. It also sounds edgy and dumb.