There are two different versions/models I'm working with:

The DAZ model i already made a fpx from :
https://zonegfx.com/marlene-wallace-for-g8f-and-g8-1f/

and another model from rigmodels :
https://rigmodels.com/model.php?view=Marlene_Wallace_3d_model__0Q0EDDS215VKJ0U96Y9P7RYU3

They aren't the same model. One provides a full body, while in the other version, the dress itself acts as/contains the body.

My main problems are:

The armature/bones don't work correctly after importing.
I'm having trouble getting the face/blendshapes to work, so the face doesn't move properly --((can't find it)).
I'm trying to get the model working properly in VRChat, including facial expressions and normal avatar movement

If anyone has experience, I would really appreciate any help
If you've worked with this specific model before and can provide it, even better.