I created a balsa wood frame for my Lilliput EBY701 that I covered with speaker grill cloth. Next step is to use fiberglass resin on the grill cloth to create the base for fiberglass/bondo application. Lots of sanding and painting will follow.
The screen mount will be attached to the dash map pocket and (semi)-permanently mounted on the dash. This is the same location that Mazda uses for the Nav screen, although it is motorized. I wanted something not hinged or motorized for longevity and reliability.