I just discovered the r/ and I'm a bit late, but I'll try to catch up. One thing to note, Librivox have produced an audiobook version, (same translation I believe) https://librivox.org/what-is-property-an-inquiry-into-the-principle-of-right-and-of-government-by-pierre-joseph-proudhon/
Yup! Silly me didn't know this back then, I went through the trouble of creating a tiny URL & everything after I had uploaded it on MEGA...
Just laughed & smh'd when I realized this a few months later!
Here's a link to the epub for further records: https://libgen.pw/download/book/5a1f05843a044650f511f1e0
Cheers!