Customs 1950 Mercury Doors

I'm building a 1950 Custom Mercury changing a 4-door Mercury to a 2-door. And need to know how wide the door for a 1049-1050 Mercury 2-door is. Would appreciate any help I could get... Thanks

 

a coupe door is around 51-3/4" measuring right below the body line forward, including the lip that hides behind the fender give or take 1/8". so your looking about 10-1/2" longer than the 4door..