Does anyone make a hardshell case for a single shotgun? It's not a take-down but an older Ithaca Model 37 12 gauge pump gun. I've seen some overly-large double cases but nothing for a lone gun. Ideally I'd like it to be lockable which is something the old soft-case I have won't do. Water resistant would also be nice. Cost not important but don't want to pay out the schnozz either.