One thing that might be an option is to suspend the desktop/door from above rather than support it from below. Attach the rear of the desk to the wall (you can

One thing that might be an option is to suspend the desktop/door from above rather than support it from below. Attach the rear of the desk to the wall (you can use blind shelf supports, french cleats, piano hinges -- so many options!), and the front of the desk can be anchored to the wall or ceiling with some cable and eye-hooks or the like.