You might want to contact Jason Scott at the Internet Archive, especially if some of those are copy-protected: http://ascii.textfiles.com/archives/5180

I know HN doesn't really do "this" or "me too" comments, but I want to underline this isn't just another option, this is the canonical option. Jason Scott is really an important and respected archivist and the IA should really be the first port of call before anyone looks at sending disks elsewhere.

You could join the Apple2 Slack, and ask if there's anything there that hasn't been captured.

Signup: http://apple2.gs:3000/

Also, just show off pictures — people will be interested! :-)