I successfully converted this tool box sometime ago, because of posts here! In my recent move, after carefully wrapping pens and inks and locking the box, I, of course, misplaced the key to the main door! Harbor Freight does not have any replacement keys. The main lock is not one that is easily 'picked'...the whole thing was under $100 ($79.99 for the box, and about $10 for inserts)...do I need to get a locksmith? Which will be more than cost of the case...