Hey EA,
I have read all of your books, they are all really great. Everyone of them offers a route to go down the rabbit hole even deeper.
But, I have noticed in all of your books you put more emphasis on gaining material things, such as women, more power etc. The one exception being the famous gatekeeper ritual, in the Book of Azazel. The ritual was designed as soul trasmutation(what I understand anways). Have you came across anymore rituals for soul alchemy?
I would certainly buy a book or program dedicated to this topic.