If you look around, used trunk-style monorail cases are cheap and not too hard to find. They provide good protection, but people tend to prefer cases that are easier to carry around nowadays. They are generally designed to store the camera with the bellows compressed.
Is this your only LF camera? If it is, you might just keep it on a tripod with a lens on it, a meter and a few loaded filmholders nearby, ready to shoot, for any impromptu photo opportunities that come up around the house or whenever the inspiration strikes, and then you can pack it up whenever you need to go out into the field. If you're concerned about dust, then throw a cloth over it, or better yet--use it often and clean it off when needed.