You might want to enquire at the "AKfiles"
They have far more traffic there regarding VZs and AKMs than this board seems to encounter.
Despite the VZ being a very different rifle, plenty of VZ owners and some builders regularly contribute on "AKfiles".
My constant impression is that far too few VZ owners know about this website. Even TheHighRoad might have far more (VZ) owners in the Rifles section.