....What would you prefer to find? ....
I don't know what it's like on the east coast, but here in the part of CA that I'm in, I can drive through the country-side, and ... point to COUNTLESS barns and farmhouses that date to ..... say .... 1890 or 1900. But NO ONE is going to these looking for seateds and barbers. Might there be some there ? OF COURSE ! But no one is knocking on doors saying "can I search your yard".
Most of those-type-yards here, if they are still functional farms/barns, up-to-the-current, are a mess of industrial farm debris, burn-pit-debris, etc....
Instead, we seek out the recreational camps and past fraternal lodges camps, where people went for the express purpose of recreation, camping, sleeping, etc...
Or the stage stops which were for the express purpose of traveler stopping, spending, etc...
Sure, I make exceptions if we're talking an 1830s site. Sure . ESPECIALLY if it were defunct and erased from the landscape by 1880s.
But I can point to many such 1830s/40s homesteads, which have a modern home/barns on the spot, that it will be murder. D/t still in use up till now.
The junkage ratio at a scout camp will be much less punishing. Newer ? Yes. But ...... you have to pick your poison.