Broke the switch box on my Delta DC 50-850. Check with Delta and was told that it had been Discontinued. Does anyone know where I might find a used one? I was think I would buy just a box on Amazon and see if I can get it to work. Will have cut cut it out to fit. The one on the DC is 4 3/4 x 7 x 2 and plastic also. Would like to find a metal one.