It's a lot to take in at first, but the problem isn't that you're really doing something wrong or that you're lacking some piece of information. You just need to actually write more code. It will help you understand why something is set up the way that it is, and also help things make a lot more sense. Once you have that foundation of experience, a lot of other things fall into place on their own for lack of a better explanation. In other words: practice makes perfect
If the price os right and research looks good I'd say take it. ASUS has a really good name, and things that I've bought from their TUF line in the past have been good.
Usually it's in the cooling. Some will have 2 fans, some with 3. Others will actually have an entire closed loop liquid cooler. Sometimes the vram will also change but that doesn't happen a lot these days. A lot of the time it's just marketing wank though. It's a good idea to look at video reviews of the specific models you want to buy though, as there are sometimes issues with specific cards from specific 3rd parties that you wouldn't know about otherwise.
Okay left to right, top to bottom. Karen Candle Hands, The Green Goobler, Man Bird, The Big Apple, The Red Menace, Doctor Moneyballs and Lady Lean the Vick's Avenger.
If you could find sliding doors of the correct height, you could install 2-3 of them on tracks at the top of the space and skip framing altogether. Another option, if you're feeling a little less crafty could just be using those zig zag room dividers to separate the space and put up closet rods. At any rate I don't think framing the entire wall is completely necessary since all you're really looking for is more of a facade than anything.
I was at a publix buying a cake some years ago and the guy scanning it flipped the whole fucking thing upside down to scan the barcode underneath. It was a cake massacre
"The Winking Kitty" sounds like the name of an rpg brothel