Keep at it, man. I recently got a hold of all the everquest tabletop rules for dnd 3.5 and they do some interesting things (and add new zones!) in some of those. Not quite canon but they might be worth looking through. Forum post about it here:
https://www.firesofheaven.org/thread...d-links.12445/
All in all it'd probably add to the headache, not to mention the canon argument, but extra materials never hurt.