3900x is going to be super overkill for pretty much everything. If you're just going to play games, downgrade to a 3600 or 3700x
X52 is okay
32gb RAM is overkill, go 16. 3200 is also a bit slow
GPU is fine
MOBO is meh, both of them.
PSU is pretty good
I probably wouldn't go with a 2tb raid0 array for my OS.. That just seems weird.
No comment amount monitor or speakers
I'd also probably go with something from NZXT's Letsbld instead.. Something like this:
https://www.letsbld.com/bld/step5?pr...aft=2773295186
Doesn't come with speakers, but it'll perform better in games and is 350 dollars cheaper. For that amount of money you can get some real nice fucking speakers.
Edit: Saw that you play Cities: Skylines.. Yeah, I still wouldn't get a 3900x. It's just a silly overspending thing