The only one i know of that fits the lolita look is http://tesnexus.com/downloads/file.php?id=21248. I wish there were more myself... :shrug:
There's a few at the http://tesnexus.com/downloads/file.php?id=29090 to, though they show a bit more skin...
^Thanks.

The ones in Tona Mods Store are too skimpy and ridiculous, so I won't be able to use them, but I've downloaded the Dark Rose one. The textures in that are set up in a frankly bizarre way - there are more than 15 for a single item of clothing! It's just so inefficient! I think I'm going to give retexturing that one a go, as I don't really want a full black dress, and maybe I'll see if I can make it a bit longer too. Annoyingly it's not actually a non-advlt mod, as looking through the textures, there's a random nvde one. Presumably so that people can look up their character's skirts :cryvaultboy: I can get rid of that though, so it shouldn't be too much of a problem. I also found http://tesnexus.com/downloads/file.php?id=22231 one, which has been retextured http://tesnexus.com/downloads/file.php?id=24811, but the original mod doesn't say whether it is a resource or not, and there's no readme. The retextured version says it's fine to use as a resource though, so it's probably good to use.
Or I may modify some of the dementia finery. I wonder if there are any white versions out there? I'm sure I've seen one before...
Thanks for the help, and let me know if you find any more :goodjob: