It's tough because honestly there is not much to go on. I have created my own mod, for my own use, where I have added Snow Elf ruins, shrines, and one or two towns still standing... barely. I didn't like that the Dwemer and Nords got so much attention in Skyrim and the Snow Elves and even the Akaviri did not have many ruins around so I made this for my own learning experience with game design. I mean they could have made one or two of the Dwemer ruins into Snow Elf ones and do the same for Nordic ruins for Akaviri.
Anyway there just isn't much to use, I mean you have the two temple facades, the wayshrines/platforms, archs, a chapel, a bridge, stairs, interior stuff and a few rubble things. I would love it if someone made some sort of retexture of the Dwemer buildings to look like Snow Elf buildings but I don't see that being easy. I myself have been quite imaginative with buildings and towns, one I tried to resemble Minas Tirith but didn't quite work out but still looks sweet but that's why these are my mods made for my game because not everyone will like it... plus I'm a novice.
That is just my guess anyway, lack of resources, to why not any have been made.