Things are progressing!! I just ordered in the RAM and CPU cooler for my Project Man Cave PC.
After watching tons of videos about the difference between 16 and 32gigs of RAM, I've come to the conclusion that, for the time being at least, 16gig is the absolute sweet spot, with 32gigs only yielding a frame or two extra.
I have decided on the G.Skill TridentZ RGB 3200MHz 2x8gig kit from Wootware:
It's slow but surely coming together. Literally just the CPU next month, and I can actually build it. Can't wait!