I am looking for my first shotgun. I don't know a whole lot about them, but here are my planned use for it. I am going to be spending a good part of the next year fixing up my friends cabin. I am looking for basically a defense gun, but not from two legged creatures, the big furry four legged ones. Nearest neighbor is miles and miles away. I was thinking about an 870 Marine. Cabin is 200 yards off the water (fresh water) and I wanted something small enough to throw behing the truck's seat and survive the kind of abuse of basically being thrown about anywhere and still firing when needed. I am not into trap or skeet or anything like that so I don't need a super accurate long barrel. Any other suggestions? I didn't really want to spend $550 of a shotgun but I am worry about all the mud and water around there.