I like the mod Better Benirus Manor. I like the default Benirus Manor. I like the size and the layout.. darn this is a hard place to mod. Especially for someone with little CS skill and limited experience.

I've worked out most of the things I want to do, but still whenever I load the space in game, there's furniture and lights that aren't visible in the CS. cupboards, candle stands, chests and vegetables. How do I figure out where these items are being added from?

http://www.tesnexus.com/downloads/file.php?id=21862. Just install, then click on anything in game with the hotkey (I think it's x), and it'll tell you what it is and what mod (or not a mod) it came from. Very handy.