Not really... this is the selling guidelines page I mentioned I'd already seen.
This does go in depth about how to package the final item and the readme files to include, BUT what I really meant was information on the technical aspect before that part -- namely, a tutorial  answering the question, if I've created a facial shape (or full body poses) I like for V3, how do I save it in such a way that I can submit it for sale?    I'm thinking there are legal and correct ways to do this, and that doing it wrong results in packaging 3d model information you're not supposed to (even though I know V3 is free now).  Something that deals with that along with how to create injection/removal files, and any tips and tricks on making sure its compatible with the most possible systems for customers, etc.  Maybe I'm overcomplicating things, but somehow I think there's more to it that copying one face pose file, adding some readme files and sales photos and sending it in.  It's a whole itemized walkthrough of that process I'd really like to see.