Okay, I have the Art Museum done and uploaded. There aren't any pictures showing up of what it looks like, but I am assuming it is all there. I checked with custard and it was clean. The Ea site is showing it has no store items. It did not go in flat, hummm...so let me know if this is okay, I will try to fix it if needed, I just left it as it went in.
I added a bathroom, and finished the first floor, using much the same style of wall paper that you used. The upper floors are untouched.
Edit: Forgot to add the link:
http://www.thesims3.com/assetDetail.html?assetId=5389195
