This is a nice idea man.
But in a way, and don't take this the wrong way, essentially, your asking for the contact of members permissions..? To contact for your camping trip. Now, this might sound fine, and of course it is, however, shooters can be rather protective of there permissions as they don't come round that often. To get shooting permission is a big thing and some, not all, are a bit 'why would I potentially give my shoot away?' As you could also ask the land owner for permission yourself. I'm not saying you would, but the thought is there.
If it's just camping you want to do,