That would be great! Thanks! I'll send you a pm with the mesh and textures. You could download IFR - link is in my sig, but all the resources are in the BSA, so that would be a bit of a pain.
I was able to see the change when I did the last update to IFR. Basically I was using Battlehorn Castle as my testing area, so I would buy all the items I had added and place them in the main hall. Since I was running back and forth and adding more and more clutter, I could see the impact on the frames. There are a couple of NPC's there, but they would come and go. Basically it was a fairly good environment for seeing the impact.
I had purchased all of Loth's weapon racks and filled them. I also had a bunch of statues, rugs, tapestries... But it seemed to be the ship, miniature lighthouse (yes I have one of those too ) and miniature priory chapel that really seemed to affect the performance. Now in my new game, I've just got a few pieces of furniture and the ship in the IC shack and that's fine.
So yeah, it appears it's important to test your house in-game as you add clutter and see how it's doing.