Volks Neo-Go body and a ken head with a bad part split (both from Pandor's big destash) arrived today!
Much to my surprise given the usual reported difficulties in matching Volks coloration, the asian Barbie head I had set aside for the Neo-Go body (I plan to make a FF9 Kuja) turned out to be a near perfect match. It's maybe just the slightest bit darker than the body, but not to a point where it looks odd or unnatural.
Sorry, no pictures yet (I still need to dig through the Parts Bin and fined a stained or damaged Barbie torso that can donate a neck peg so I can swap that with the Volks peg - it's the fastest way I know of to put a Barbie head on a Volks body)
Experiment for repairing split vinyl heads is now on the to-do list.