It would be nice to have a secure shed for that, but other things are tying up my money for the field. I do plan to buy a trailer this winter for that purpose, but I'd take it with us every night. Up here in Alaska it's really easy to screw with stuff and not get caught, a lot less people in the area.
The reason I asked about how the plastic held up is because we used typar, lightly stapled to the surface of wood, and it still dimpled/ tore.