What should i change on my computer specs?

[kuuttinorppa]

Hey. I'm going to buy a new computer because my current PC cant run games very well anymore. I mainly am going to play rust and mmorpgs as such. I picked computer specs and it rounded at about 2200€. I dont know what are good parts and if I'm buying too much and googled around what they're for etc. If anyone here has suggestions what parts i should pick or switch feel free to tell me. (ps. sorry for my bad english)

NZXT S340 Elite white
WD Black 2TB Performance HDD
Asus GeForce 1080 Strix 8gb
EVGA SuperNOVA 750 G2
Corsair Vengeance LPX 16GB (2 x 8gb)
GIGABYTE Aorus GA-Z270X-Gaming 7 (rev. 1.0)
Intel Core i7-7700k
NZXT Kraken X62
Samsung 850 Evo 2.5 1TB SDD

Im going to get custom cables which are white.

 

[Dark Lord of Tech]

Perfect , build it.

 

[kuuttinorppa]

Perfect , build it.

I was thinking if i should change the 1tb ssd to a 500gb 850 pro