I needed to import a pp2 into Blender 2.80, so I started working on the original scripts. I think it was always pretty rough, and the years haven't been good to it, but I have a version here: https://github.com/jentron/Blender-PT2 that will let Blender 2.8x load poser prop geometry and save as well. Unfortunately, uv's are broken as are materials in general. Definitely a WIP.