I tried and failed. Lets get someone who knows their shit in here.
I do not know how much work needs to be done, however the model has it's original rig intact.
I have made a successful compile myself, but my lack of know-how of creating animations for it (base ragdoll.smd for instance) resulted in a very very broken rig; all the bones were 'zeroed' to the roottransform instead of freestanding like they should be.
Bodygroup/skinned facial expressions are optional, I just need a proper compile. I can even handle prescribing textures myself if you can't be bothered. Just need a scaled ragdoll of it. Like literally, most of the work is cut out I think. Theres just one step I can't nail down myself.
It also does not need to have physboxes, I will be using this exclusively in Source Filmmaker as I do with all my assets.
The Bananites below were awarded the Request bounty.
I got as far as getting it imported into Maya (it's a version from a few years ago, but legitimate, so I'm not sure if there are better tools in newer versions yet). I had to fix all the UV map positioning though, as half of them were upside down for some reason. Bones are there, but the only part with varied skin weights seems to be the stomach, so honestly, I don't even think I imported everything correctly.
I might look into it a bit more another day, but this may be as far as I get unfortunately.