MMD Model importer for Daz Studio!  wow...  tried it on a model, and it worked!  Rigging was not perfect, but there was rigging as well.  Needs the latest Daz Studio 4.8 and make sure to download the C++ runtime mentioned on the blog.  Then it worked for me.

I think the Blogs owner is named Yuki (?)....I saw it via Tofusan's Pixiv