The real author of this asset is o4saken ... I only changed a few vertices and added a new "base scalp", then I created textures with Blender (strands on a transparent background). Be aware that the export of this asset to Blender will fail until the exporter is fixed. The reason is the number of vertices > 100000. I will add a text to the "unofficial plugins" folder with a workaround. For the material: best to plugin the color input of the glossy shader to the output of the diffuse texture in cycles.