I spent a good 8-10 hours going through the East Empire Company in order to get a fancy new estate just for me. 

And it turns out, it is dark, empty, and bare... So I fired up the Morrowind-CS and rebuilt the interior. 

My changes are as follows:

• Brighten the lights
• Add additional shelving
• Remove a useless wall
• Re-orient the lights so they come from the candles and such
• Add some rugs and wall hangings
  

It's pretty simple. If you see any issues, let me know. I doubt that I got EVERY vertex perfectly aligned.
The mod aims to tweak the interior a little to be more homelike, without taking away from the atmosphere of Raven Rock.
Since I don't add anything new, there is little risk for losing any of your stuff if you accidentally uninstall the plugin.