Ah, well... if I'm taking the thread off-topic, um, my apologies.  I become a bit enthused about a new problem, and I do have a bad habit of sort of taking over a thread.  I think I may have misunderstood your overall goal, in my perhaps narrow focus on certain scripting problems.  Hmm.  At any rate, you've given me a few things to think about.  :D

In terms of the splitting of props, I've just glanced at the link PhilC provided, and his tool looks like it probably delivers already on that idea.

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.