Got the new switch in from Digi Key today. Part # is CWI419-ND if you need one. The rocker itself doesn't have the needed holes for the larger rocker cover.
While looking the old switch over I popped the rocker out of the old switch. Do this with a thin blade screw driver and very carefully pry the case apart from the rocker while using an upward pressure. There are two small springs, the momentary part of the switch action, in the rocker. You will need plenty of light to keep track of things.
The plan was to swap the two rockers. Once I had the old switch apart I was able to reinstall the contact I had pulled out originally.
Everything is back together and working like new. I'll keep the replacement switch I ordered in the MH in case of