What holds he KF in place? If you use only pressure (as in a tight fit) you will run the risk of breaking the glass when placing the KF in the holder or when taking it out. If it doesn't have a tight fit, then it will most likely just fall out of the holder perhaps causing irreparable damage. Since the holder is only about half as tall or wide as the KF, straps won't work. I think you need a holder with the backside a little larger than the KF with a cradle for the KF to snap into and a handle built into that cradle. Looking at your drawing I seriously doubt it will work as it is currently designed.