3Rivers has / sells them now. I don't know of the availability, but I just received a six pack earlier in this week.
My initial assessment is that they are good heads. They are not likely to be the sturdiest head out there but really, I am hunting deer, not concrete.
Initial passes with a file tell me the steel used in their construct will likely sharpen up nice. The layout looks to be easier to sharpen than Hill heads ( ferrule is not in the way, mostly).
From the nostalgia standpoint... they look pretty neat. Hope to kill a deer with one this fall. Maybe a turkey this spring, who knows.