When you say "primitive trekking/camping" just how "primitive" do you mean? Having done my fair share of 18th century "trekking" (I never did like that term), there are a number of suppliers of fairly "period correct" tents (from very early times up through mid to late 19th century). Try a web search for Panther Primitives or Tentsmiths, just to name a few.
Hope this helps.
Hope this helps.