I helped Whispers make some walls! - Found the download!
Whispers made a great wall texture, so I recolored it with curiousB 's actions and did a version with a baseboard and one without for each color. Whispers made the actual game files and uploaded them to GOS, but the post was lost while GOS was down. Whispers has provided this link to download directly.
I uploaded the set myself here on sims file share.