I'm a bit of a data hoarding goblin, and my C:/ drive only has a few gigabytes free. As you can probably guess from the state of the RAM and the storage market right now, I can't exactly replace my 500 GB drive with a bigger one at the moment, but have a few hundred gigabytes free on some other drives.
I'm wondering if there's a way to either point the game to a folder on a different drive instead of C:/.../Appdata/Roaming, or re-install the game in a portable mode where all the "packs" folders can be alongside the install folder on whatever drive I'd like to use.