Even if you want to travel the spiritualist path, there are better teachers out there. Have you looked at Alice Bailey, Leadbetter (theosophy) or G. I. Gurdjieff?

Until you quit looking for a teacher, you will never learn actual truth for yourself. There is no shortage of people and ideologies that tell you what you should believe. The unflinching study of actual reality, on the other hand, is something you can't shop around for. It's just THERE to be seen and assessed.

As for Crowley, one of his biographers summed him up as "self-confident, brash, eccentric, egotistic, highly intelligent, arrogant, witty, wealthy, and, when it suited him, cruel". If that sounds like a source of anything extraordinary to you, knock yourself out, but it sounds like pretty garden-variety entitled / wealthy provocateur material to me.

The "higher consciousness" I seek is my own. See trilliumawakening.org and wakingdown.org, both non-transcendent, down-to-earth paths, following the work of Saniel Bonder.

I don't understand. You are skeptical (don't believe) in any deities, but do believe in a higher consciousness? How does that work?

You are the first person that I have heard say they are interested in his teachings. Sorry can't help you.