I have some extra 40 gal tanks with the sliding top laying around. Is it possible to turn it on its side and use the top (now front) screen as the door? Would there be any other adjustments or stabilizations that I would need to make? Why would be the best way to make a lip at the bottom so the substrate doesn't fall out? I would love to be able to convert the tank to a tall tank for a lechie. Has anyone here done this before?