I'm not sure if they are still available, but DAZ did produce two uvs files that would remap the main Victoria 3 file to take V2 textures - one version retianed V3 material zones, the other switched to V2 zones as well. You need(ed) UVMapper (Classic is fine) to aply the new mapping, and had to make a copy of the Victoria 3 CR2 to point to the remapped object.