Sounds good. Actually, I like both filtering options, but especially the second. A bit hard to test full scale, as I do tend to build textures into the models to make sure the mapping is ok.

Another thought, along the same lines, if different. A while back we discussed changing all windows in the house. To see how the house would look with new windows, it was possible to dive into the SH3D file and replace the window model. But that was a messy approach. So a sort of general search-replace would also be a nice idea. But I suppose that is different from what you are up to.

Anyway, looking forward to seeing what you come up with for the textures. Good luck. ok