Hi Marco,

to be honest, what i don't understand why do you need the fasted workflow possible and
for what are your concept works? I would understand if you are an Animator and need to
render thousands of frames the fastest way possible. But as i have seen, you do still
renderings. About your workflow, i would also explore maps baking from high-res meshes to
low-res meshes and automatic creation of UV's, because then you could use the pbr
maps from 3DCoat with the Thea Converter Utility, which converts 3DCoat pbr materials
to Thea materials.

Best regards
Stefan