Not ideal, but you could either scrape the browser pages to reproduce the pages without DRM, or even get hold of a physical copy (e.g. from a library) and scan

Not ideal, but you could either scrape the browser pages to reproduce the pages without DRM, or even get hold of a physical copy (e.g. from a library) and scan the pages yourself. If you manage to produce a good enough version, don't forget to make a torrent available. (There's a bunch of physical copies available on eBay)