One worry might be the use of Adobe AIR for the Library. I assume newer versions of Windows would run it, but you might want to check that. But it you can afford $50, you should know that you can get a Poser 12 licence for $49 via Graphixly. Or a Poser Pro 11.3 licence from NeoWin at $79. The latter should run most of your old Python scripts, and also the DAZ DSON importer and perhaps even the old PoserFusion plugins (if you ask it nicely, and can find the installers).

I'm not sure if the Smith Micro servers are still responding to licence pings from Poser 10 installs. Poser was sold to Renderosity / Bondware.

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Learn the Secrets of Poser 11 and Line-art Filters.