This sounds very creative and I'd love to help out with at least the set up for you, if you're still looking for anyone.
From my personal experience, I'd say you might benefit from a game lexicon, or perhaps two; one for the real world and one for Morpheus? They can cover places, people, things, timelines, anything at all you want to make record of. There's a few different ways you can set them up; all done in an entry made by a communal journal (or mod journal if you're willing to commit to editing it when people add things), or done via comments made in specific formats by any user, or a mix of both. I would be happy to help set this up with you if you'd like, and I'm also fairly good with setting up appealing html for mod pages and adverts. I am not the girl to go to however, if you're looking for someone to keep up with activity checks or scold or deal with player conflicts, as being fairly shy, I'm pants with all of those things.
If you're just looking for a bit of advice, I would suggest playing with the concept of your duality whenever possible, even if it's just a simple visual representation like
MORPHE
A MIND
NOMENA
BENDING RPG
It will definitely set the game apart, along with the awesome concept. Good luck, and if you'd like any help, let me know! :)