Okay, been out of the game for a bit so if the pros want to correct me, please do lmao.
To begin, whats the max price youre willing to spend on a rig? Is it around $1800?
Secondly, are you planning on OCing? If so, id recommend you get better fan as OC'd CPUs can get pretty hot and that cooler is pretty small, if im not mistaken.
If you arent planning on OCing, then I wouldnt bother with a K series processor. The Z board can stay assuming you want to do SLI down the line but with the 1080ti, I dont think thats necessary tbh.
Also, about the Windows, what I did was cop a free version of Windows 10 and contacted Microsoft support and they activated it for me.
[ Register or Signin to view external links. ] , itll save you about a $100, so imo its worth it and you can spend it on other parts.
Also I noticed you didnt include a HDD? Id just use the SSD for windows and a few other games that you play super often, such as Witcher or GTA. Then just keep the rest of the space open so boot times will stay low. Then get like 2TB HDD for the other games and PC shtuff.
Another thing, with your budget, Id probably think about getting a 4k monitor or at least 1440p. That 1080ti is powerful.
Id also invest in a nicer mechanical keyboard, however im not sure how good the Reddragon is. Im not a keyboard expert, unfortunately.
Hope I helped