It was all going so well until I ran into the 850W!!! PSU. I think What is he getting(or she)[I correct myself like that]. Oh, just a little 1080. It only calls for a 500W. A 550W G2 would be PLENTY. Let's take another look at that 270, over at Newegg. Ahhhh. I see
Supports NVIDIA 2-Way SLI Technology. You might order another one.
What about
https://www.amazon.com/EVGA-SuperNOVA-Modular-Warranty-220-G2-0750-XR/dp/B00IKDETOW/ref=sr_1_1?s=electronics&ie=UTF8&qid=1499385858&sr=1-1&keywords=750W+G2 for $10 more? Yes, it will EASILY support CPU, GPU and RAM overclocking with SLI and a full boat of drives. See that big snake coming out of that box? You have to keep all those and fill up your cable management dead space. The G2(G3 is same price) is fully modular. You only use the cables you NEED. Neater and cleaner, your case will be.
The RAM is just as important as the rest. Have you made a decision about that?
BTW it's a balanced near top end mainstream build. Nice, very nice.
I would definitely add a 256GB or larger SSD(Samsung Evo or Pro?) to this build. What about a back-up drive?
Yes, everything is compatible. Your GFX card will fit in the case. It isn't too long.
Your Evo will fit in that case with 2mm to spare.