do not replace the doors, but cut out a square or rectangle in the doors and rabbit a groove for glass to fit in side the door. This way you have the support of the door, have the exact door, and have a pane in it. These look great. You determine the size of the cut and the size of the glass pane to use. then get dogs to ear over the glass to hold it in. The rabbit should be as thick as the glass pane. A rabit is a square groove around the cutout to accept the glass.