Ribofunk, that's great work! But I'm curious why you decided to box in the fridge. Seems like you're needlessly giving up some cu.in. space.
Small stuff goes on top of the fridge that you do not have to move when the fridge is extended, and nothing falls behind the fridge when you slide it out. You can essentially pack the open space tight and never have to move anything when you move the fridge. In my mind, if you didn't box it you're giving up all the space above the fridge and constantly retrieving stuff from behind the fridge.