Build Help/Recommendations

[Conman1700]

I'm planning on doing a one monitor 4K high-end RGB gaming build, and would appreciate any ideas and/or recommendations. I live in the US, and have a semi-flexible budget of about $2200.

 

CPU - Intel Core i7 6850K (This, I already bought. Found it on Amazon for $360, and couldn't pass it up)

Cooler - Corsair H100i v2 (This, too, I already bought. Found it on Amazon for $85, and couldn't pass it up, either)

MB - ASUS ROG STRIX X99 Gaming

RAM - Corsair Vengeance RGB 16GB (2x8)

SSD - 960 EVO 500GB

HDD - External 1TB Seagate (Put in 6TB WD Black, later)

Graphics Card - Gigabyte GTX 1080 Windforce (I'm buying this from my friend, so I can't change it)

Case - Corsair Crystal 570X RGB ATX Mid

PSU - Corsair AX860i 80+ Platinum Fully Modular

Wifi - ASUS PCE-AC88 (Put in later)

Extra Case Fan - Corsair SP120 RGB (Case comes with 3 in front, this one is for exhaust, and syncs with the 3 front ones)

Already have Razer gaming keyboard and mouse (Though I wish I would've gone with Corsair, to sync with the fan RGBs)

 

I realize that I have already locked in a few of the most important pieces, but thank you for help with the rest!