What specific defects are you most worried about encountering, like old nails or severe warping? Understanding the actual condition of your barn wood batch is crucial, since "reclaimed" can mean anything from lightly weathered to full of surprises. That assessment will really dictate your prep time and final decision.

Stella_morgan78 has a point about guides, but focusing only on them misses the client side pushing for dangerous photos. I've seen hikers pressure guides to bypass barriers for that perfect shot, trampling vegetation. Guidelines mean nothing if visitors ignore them, like when seasonal rangers can't monitor remote areas. Effective protection requires educating people before they arrive, not just policing guides after the fact.