I am wanting to get a plastic travel crate like the kind they use on the airplanes etc.-I got a BIG wire crate, but it is bigger than what I want to take on our road trip. I want a crate big enough for him to have a bed and some food-possibly a small wee pad. I want it big enough he can move around-but not a small apartment like the wire crate I got him. I also want a foldable one. They have some on petedge but I am having trouble deciding on a size.