This is really cool. Do they by chance offer a rate limited rsync access to archive everything? Asking in the event my small community gets cut off during an economic collapse. If so I would also set up a public rsync mirror.
I had a similar desire but wasn't able to find anything through Librivox directly. Not everything is up there (at least when I was checking), but I ended up going through archive.org for a number of big collections using the torrent option. I've been seeding some of those torrents now for years and they get very little traffic so I have no problem keeping them up indefinitely.
Not to be that guy but if your community gets cut off from the Internet in an economic collapse maybe audiobooks of public domain works are not super important
Just like in the movie Book of Eli [1] I will keep everyone's MP3 players charged. They can also come over and listen to solar powered Bluetooth speakers and their music, books, whatever. Maybe some children's books for the kiddos to keep some level of normalcy. This may be even more important should we go from economic collapse to societal collapse.
I appreciate you being that guy as I am often also that guy. We should form a club.