The Archiving group The-Eye did actually made a back up of the Archive torrents. https://the-eye.eu/public/Random/archive.org_dumps/torrents/ They have a text file listing the file list of all the collexted torrents. It’s a text file. That they had to compress. And it’s still around 800Mo big just for that one.
To be fair, I’m in the same situation. Fedora, Libsteam_api.so and more dependencies and all. Do want to share it out, even if I didn’t work for me. No idea if it is a case of “Source only” or if the devs don’t really know what they are doing and forgot to remove non-free dependencies like the Steam Integration.