Alright, while actually taking a deeper look into the build, I made quite a bit of changes including the case. For obvious reasons. You're going to need an optical drive unless you decide to find all the drivers you're going to need for your system online and put them onto a USB (too much work really especially if you're not sure the exact drivers you need, etc). It will be a lot easier to put in the driver installation CD and then use the programs it comes with to update the drivers, and you'll at least know which drivers to look for.
Besides, its always good/convenient to have that optical drive. Can stick a DVD and watch one of your movies on it, play old games for PC that you have on CD, or w/e... it's just a nice thing to have.
Also, you really don't need that many fans. The case you had before would have only really supported an extra 3-4 fans and the case I added would only really support 2-3 fans.
The CPU cooler you are getting basically is going to cover up your outtake/exhaust part of the case anyways.
That's the list with the adjustments I made.
Feel free to do w/e you want but yea.
Also, on another note about monitors, CPUS, etc.
The Monitors are really IMO personal preference. There is no wrong and right. Hell, some old CRT monitors actually have better refresh rates than new LED/LCD monitors.
The CPU, you're going to want the i7 over the i5 if you're thinking about doing video related things, streaming, etc. It will give you better performance than the i5.
The GTX 1080 is going to be better for you when it comes to actually achieving the FPS for your monitor's refresh rates, so I wouldn't downgrade that unless you're going to downgrade your monitor to a 144hz, then a GTX 1070 should be fine.