Oh come on think outside the box: Take on a few writing gigs(Plenty of them around here) and purchase the book with money earned. Look at it as a business investment. There are no free lunches.
Yeah, buy it man. Don't step back in investing in your future. Buy it if you really thing its worth! As such i think, you can find ample amount of free content online about this.
dude, if she still relies on a sales page to sell her books, i don't think you need to worry too much.... http://www.copywritingcourse.com/?hop=tegsta&type=nohop