>>2327813Primitive crafts are more of an anthropological or well, craft thing. SCA and other historical larpers or special interest forums for things like leatherwork and tanning (most of which will not interest you) is your best bet. Many of the artisan skills and trade crafts are like brewing your own hooch, it's easy on a fundamental level but once you do it you see why cottage industries have existed anywhere there were enough people to support them.
Also special tools that used to be common but aren't now. Simple brain tanning of deer hides requires a 5 to 10 gallon cast iron cauldron. That and making a stretching rack with some saplings and the intestines is about all it takes but the craft side always involves some big material hurdles. The Foxfire series has an overview and how-tos for a number of mountain crafts like that. Most old bushcraft, emphasis on the craft, was a group effort done at a full blown working CAMP inhabited for months at a time.