Second row door cards

I currently have series/early 110 style split doors with ali tops. I have the military door cards fitted to the front doors. I am gathering parts for a conversion to a station wagon and have the rear doors now but cannot seem to find an equivalent door card. Before I go down the route of making my own with some black vinyl and waterproofed mdf does anyone know of anywhere selling second row door cards for early/series vehicles? I know you can get the military fronts nearly everywhere now.