That is a custom-cut sheet of wood (pine) from the swedish equivalent of Home Depot combined with drawer unit ALEX and trestle LERGÅRD from IKEA. Cheap and clean!
You raise a couple of fair points! On the issue of founders edition, well... price wasn't really an issue and I have a thing for using standard solutions (that would be my prime argument on that point). The Windows thing comes down to student discounts/licensing (for which I'm eligible).
In terms of storage, I have a WD 500GB somewhere that probably will be installed once we get there. And yeah, the i3 8100 performs beautifully, although I'm a bit worried about streaming. Might look into some expansion card (like the Elgato one) or just save enough money for a a couple of more cores in the cpu socket down the line.