(Moved to the Livonia channel)
After however long playing on Livonia, I realized that all of the ruined buildings you find around don't have non-ruined versions. I tried loading CUP to see if I could do any replacements, but not even those buildings match. Ngl, it's kinda disappointing since I wanted to make a non-ruined version of the Nadbor region.
The weirdest part - a lot of the ruins are city buildings, but in the middle of places that aren't cities, and all the (non ruined) "cities" are made of suburb-type buildings.
Edit: Some, but not all ruins have a CUP equivilant, such as Big House (v4). Notabely, in that example, the ruin has a chimney thing going through the right side carport, which is clear on the CUP model
CUP House Block D1/D2 also matches with Big House (v5)


