Phitt's modder's resources for his project "Sheogorad - Forsaken Isles" have been released! You can check it out here:
http://www.tesnexus.com/downloads/file.php?id=37329
These are the assets included:
1. A complete and enhanced Dwemer tileset.
2. A complete and enhanced Velothi tileset (mainly for tombs, but can be used for buildings as well).
3. A complete and enhanced Daedric tileset.
4. A mostly complete Dwemer rich tileset (not in Morrowind or other ES games, built from my own imagination)
5. Complete architecture for Dagon Fel (Imperial style houses in Morrowind).
6. A lot of 'Dunmer architecture', the same houses used in Vos in Morrowind.
7. A complete set of landscape objects that can be found in the Sheogorad/Azura's Coast region in Morrowind.
8. Some other things that were or were not in Morrowind (Dunmer ship, clutter, deco Cliffracer, some creatures and so on and so on)
9. Probably even more things that I forgot.
Anyways, I thought I'd post this because there are many resources we could use here. And Phitt's resources are always high quality. Again, check the link and look at the pics.
One thing though. I didn't read the readme as it's bundled with the whole file. Someone definitely needs to make sure it's ok to use Phitt's stuff before actually using it.
EDIT: Upon looking at the pics, it looks like he has a working ancestral ghost?
IF ALLOWED, many objects I can see us using and replacing are the rocks on the coast and the large mushrooms. Those look extremely high quality.

You're absolutely right about the shape, that would be a major problem if not the right size. I'm not a 100% sure if his objects are the same size.
What about the ancestral ghost? How's the team doing on this?