I have almost that exact setup, but about two generations old. 6700k 4GHz base clock, 980Ti, MSI Z170A, Samsung 840Pro SSDs, 32GB 2666MHz Corsair Vengeance, 2x 1440p monitors. I box 5 with usually 60-90fps main @ 1080p, slaves at 12fps/renderscale 0.3, and watch Netflix/youtube and have a browser open on the other monitor with about 10-15 tabs. We won't talk about how long my tray is. I haven't touched the CPU timing or lid and it never goes above about 65C flat out; WoW 5box does not stress it. So, it's a solid option. I would dispute the 64GB personally. This is what I'm sitting at with three browsers, an image editor, 5 clients in old Dalaran, and a fair bit of background services running. It's about as pegged as it ever gets unless I'm running a much newer game at 1440p Ultra.

https://imgur.com/a/S5pTS1i