I will second this ask. Transparent clothing in Skyrim is fine only when used separately. As soon as you add second layer of a mesh which also uses alpha channel, rendering starts to misunderstand whats going on. Two best examples of when it can happen are - Transparent outfit with transparent ling...

I dont know, never thought about implementing it and by performance it's very unfriendly to cpu when many characters are visible. I dont even have anything to test this feature. Dont think it worth to do now, so rare can be required, but mod for SE so far from end. I don't know if you're currently ...