My experience was the same in the 80s Mike. Back when painted camos were no more, or less desireable, than helmets with nice decals and about $200 they were exceedingly hard to find, almost rare, except for silly fakes. I know because that is what I was looking for then. Now "camos" are everywhere for sale. Most of the neo "experts" on these came on the scene in the mid to late 1990s when the "camo explosion" occurred. They compare fakes to fakes.Just like the camos and neat gothic signatures.
I never encountered wired helmets while hounding vets in the 60s.
Always looking in the wrong place.