It’s a good thing we don’t have actual mods here. But one day there might be, and that worries me because I don’t want to see you get in trouble.
There’s free digital copies of many of the books I use, but the difference is that the publishers make them freely available themselves. Because Buddhist authors are cool like that. 
I could share a ton of books here because of that, but naturally I live in the bardo between East and West, Magick and non-magick. 
I don’t know if it would make sense to share them.
I will say that I highly recommend “Drawing Down the Moon” from that list - that book is great for studying the history of the craft as it evolved and spread into America. Very good book.
Greetings from the bardo! 