How small does the Nox break down to?
I have a Racer 3 which comes apart into three lengths and I have managed to find a plastic tool box that will hold it plus my finds belt and other accessories.
In fact the only that doesn't fit in is my spade and if push come to shove I could fit a folding GI shovel if I wanted....
Other than that, I would think either a hard rifle case or one of the more heavily padded tactical rifle cases would be the way to go...