I've gone a cheaper route. In the U.S. we've got a company, Plano, that makes boxes for fishing gear and other stuff. I bought a pair that can clip together and added bubble wrap. One side is almost all hones, and the other side is for tools, rod, washers, and razors/blades/scales/works in progress. I can keep my whole tool kit in this little box, and it takes up almost no space in my camper. In the hone side are two DMT plates, my Charnley without its lid, a Spyderco UF, one finishing coti and a couple of faster coti bouts, Thuri, slurry stones, Frictionite 00. When I'm actually in transit, I keep a strap around the boxes.
The waterstones travel separately.
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The last picture is at home, where the hones have more stylin' digs.