Basing my answer off of current tech so it's not going to be 100% accurate until official benchmarks from sites not owned by someone at AMD come out I'd suggest the following.
Go with the Asus Maximus VIII Hero "I have the VI Hero running an i7-4790k"
Note: If there's a motherboard that can encapsulate & cool the M.2 2280 SSD below you'll likely want that one instead
Unless you're going to do some heavy Virtual Machine work or A/V encoding work, save the cash & drop from an i7 to an i5 if you run into the budget wall -- This will save you around $100-$140 if prices are similar to the 6000 line
A Closed loop cooling unit for your CPU. My Corsair H90 is working like a charm - However I did put 2 high airflow quiet fans on it "Corsair 140mm if I remember right" -- This will be roughly 100-160 depending on the unit & fans you get which depend on the space avail in your case
If your copy of Windows is an OEM version you may need to replace it -- 7/8.1/10 Go with the Pro version for the higher amount of ram support.
Balance the costs of these 3 below with the remainder of your budget
Corsair Dominator Platinum DDR4 - Buy in Pairs, as fast as the board supports, suggesting no less than 16GB max of 64GB on the new boards I believe
Samsung 960 Pro "Ranges from 256GB to 2TB"
High airflow low noise adjustable RPM fans for your case
Honestly if you have enough after the above and desire VR experience, look at picking up a GTX 1070
Other odds & ends for the build
Arctic Silver V if you don't have a tube laying around.
Custom cable kit for SATA3 Cables
Custom Cable kit for power if your power supply is modular
Power bar to move the Video card power cords from the top of the card to the bottom by the end to reduce cable clutter
Poke me closer to the build & I'll fill in part numbers when avail