Richard,
I've seen literally hundreds (if not more) of German reworked Vz.24 bayonets all with recycled wooden grips. Never one with what looked like a brand new set. Likewise, I've seen a greater number of SG 84/98 (98K) period German recycled bayonets. Wood and plastic. Some might be in better condition than others. But on bayonets so far, all recycled. The singular exception being a couple of sets of brand new late plastic grips by themselves, from a small group of "war booty" items taken from a factory.
It takes a certain amount of specialized machinery (and procedures - plus) to carve the grips out of a block of wood in any kind of economically viable quantity. Can you post a few pictures of what a new camp made replacement grip might look like?
PS: That picture you posted of the KZ workshop was circa 1943/44.
Best Regards, FP
