@Guvpwilson, I’m not sure how you plan to use a PAO system but I ended up creating my 7711 system and writing a book on Bible memorization that includes stuff I think you’d like.
This short excerpt has the book, a substitute word, a Major system keyword, a terrain/location, subjects and a story that spans all 66 books.
The Ephesians section looks like this:
It was one of my favorite images.
Let me know if I can help you with your memorization. It’s the reason I learned how to memorize.
Doug