These are nice builds, but at $2600, I think I would want more than a quad core as my proc. I know 7700k gets good FPS, but at that price point, you're looking to game in 4k, and that quad core is selling yourself short at that point.

7700k gonna choke in a few years. It already chocking and dropping frames in CPU demanding games. Min frames gonna get worse and worse. And 5GHz overclock won't fix it. Getting yet another quad core in 2017 is not gonna last as long as Sandy Bridge did. Sucks to build PC now. Ryzen needs more time to shape up, yet Intel 6 cores CPU cost arm and leg and already beaten by Ryzen performance. Corsair need to grow some balls and go with Ryzen. Hopefully we'll see trend change as Ryzen matures.

I’m a big believer of ‘when the time comes’, speculation doesn’t do much. Right now for gaming, I would stick with Intel.