I just did a pretty successful conversion of an 8.1-specific character using this guide for the surfaces (which makes sense; you really just need to split out the head group), and by doing the usual base resolution -> export -> morph loader pro routine for the head and body morphs separately. It's not particularly difficult as long as you're willing to get in there with the geometry tool to pick out the head faces.
Let me take a poke at ScarlET and see if there's any reason this shouldn't be just as straightforward.