I would love to see the Thermalright Macho Rev. B included in the mix. It's normally for sale via Amazon at $50, keeps my 4770k at 29* C at idle in utter silence, and can handle over 200W of total head load without much air circulation (in a tiny Metis Plus mITX case). My only complaint is that...
As of now, these boards can only be completely filled by using P106 cards in 6 slots - whether or not that will change at some point remains to be seen.
You'll be good at 4K too, just not at 60fps using the absolute max settings in all games. But it's still a very good experience, particularly since at 4K I don't think you don't need nearly as much antialiasing to get great image quality... I think you're going to be real happy :)
I'm letting folks know about an equivalent option for $60 less than the deal price, which is no longer even available. I'd call that a service, not threadcrapping - but I'll let the mods decide.
This deal is over now, but for anyone still looking I've got 2 brand-new in box Zotac AMP! GTX 1080 cards available for $450 - here's the thread: https://hardforum.com/threads/4x-zotac-gtx-1080-amp-edition-cards.1946346/
Bump, and all PMs replied to. Currently all 4 are still available, but they will sell according to whoever pays first. PayPal is my preferred payment method.