Just finished setting up a shot using your script. It's working pretty well. I think a few more tries will help get some little kinks worked out for usage sake.  There's a really good description of Poser vs. Maya scaling here: http://www.digitalartform.com/archives/2009/04/matching_poser.html

Don't know if you'd want to plug something into the script to adjust for the difference in scales between the two, but I did notice that the scaling seemed to be integral for really tweaking out the results. I should have a test clip comped together sometime tomorrow; when I do I'll post it. I am really excited by the possibilities of this because with the right render and material settings, and post production,  Poser is really capable of rendering some very useable footage for stuff like this. -Les