I tried to use Blender's "Shrinkwrap", but the accuracy is rather mediocre.
Also I had the "Convert V4 Body and Head to G9.duf" but the [Victoria 4.2] in the paired instance just do not react/morph when I drag "(Body/Head)_INJ.pz2" in the runtime library.(some steps missed?)
I had some successful results converting old/rare V4 Characters into G9(both head/body),
but unluckliy I forgot to take notes.
So I guess the next choice is to ask: How would you guys begin to do so?