Ever since I posted, I've been trying to work the model into an Add-On. So far, it works only in absolute basics. It's just the Retail model, but with full legs and arms, and much less other nodes.
Ask Bauklotz if you want the unfinished, unperfected version.
Edit: If you're wondering why the Beta Retail model has a yellow head, reference the screenshots in the cited topic. For some reason, only the front flat area of the head changes color. The rest stays yellow. I might be able to fix it, but I'm sure it'd break the model in the process, so meh.