A couple of differences from my original parts list, I ended up going with 96GB of RAM instead of 64, and I got an E5-1650v3 after seeing jgreco recommend it in quite a few different threads.
I got it booted up for the first time, and was ecstatic when it POSTed! That was surprising, as I almost always forget some minor detail and have to go back and check my work. One strange thing though, while it is booting up, the fans will speed up to full throttle, then slow down to no spinning. After a few seconds, they will speed up again, and repeat the cycle indefinitely. Looking around on Google, I am seeing that this is either indicative of a faulty PSU or a short somewhere on the motherboard, so I am going look around for loose screws or somewhere it has shorted. Any ideas on why this is happening, or is it normal during bootup? I haven't run it for more than a couple of minutes so far.