You might want to google "detect fake usb drives" and check the capacity before you decide to keep it. Fake drives fool your operating system to show the capacity incorrectly.
Again, these extremely cheap 1-2 TB drives are most likely fake. The real capacity is 64 GB or less and they're probably completely unreliable.
It's better to buy a real 256 GB drive for that price. Or an external HDD if you need a more capacity.
Extremely cheap USB drives tend to be fake. They aren't reporting the capacity correctly. As someone posted in the reviews: "This does not hold 1 TB as advertised. It only holds about 64 GB. "
I believe you have to download this manually from the website to install it. The PA installer seems to only have the non-Classic version.
Edit. It shows up in the installer now.
If you're in the EU you should be able to get the deals from Audiodeluxe without any tricks and the prices are basically the same (they have the deluxebucks bonus system).
I haven't upgraded (yet), but believe in Opus you can download even single instruments/sounds if you want, as Guy Michelmore demonstrates here.
https://youtu.be/CTqsxR_z9X8?t=270