This has been a goal for two years, and we have finally achieved it today.
Even better, you can add up to 500 pages (including library works or essays) to a collection, and download it all as one PDF 'book'.
To get started, go on the homepage (https://en.prolewiki.org/) and open the megamenu, then click on "Create book" and follow the instructions.
We're still ironing out some hiccups, but I can't tell you how happy I am that this works! Guess who's celebrating tonight ๐
Not that much, between 20-40 gigs. However that would be for the source files; as a PDF, the website might take twice or three times that amount because it's an inefficient format. We'd have to run a script probably to make the PDFs automatically and there would be like 10 volumes to it (500 articles per 'book' for ~4000 articles)