1st of all,
850w isn't necessary, unless u're going on 1080ti SLI later on, Dugimodo is right, 650w is already good enough for a single 1080ti build, so u better spend the extra money on a 80+ platinum instead, much more worth it
2nd
Dugimodo already suggested u to get the Ryzen 5, again he's right, all Ryzen are OCable, so u can just get the B350 mobo (which is cheaper than Z series usually) or if u're planning on SLI later, the X370 (price bout the same as Z series), Ryzen had more core & thread, which means more productivity performance and more stable fps, since new games are starting to utilize the extra core/threads, also, the Ryzen non-X version comes with a Stock cooler, which means it isn't necessary for u to get the liquid cooler (if u still want it, better get the X version, comes with auto-overclocking feature too and no stock cooler)
3rd
1060 is overpriced / out of stock almost everywhere now, don't get it, either go 1050ti below / 1080 beyond, (RX 470 - GTX 1070 are all overpriced) or u can just wait for Vega and see what it offers. (u're buying a GTX 1060 with a MSRP of 220$ at the price of 367$ dude...)