I flipped one of the gridrooms the other way around because the units for the floor were too mashed together so I flipped it so that the mashed units were the ceiling and the clear ones were the floor. Seems to have worked out fine.
Hey Rich, I just wanted to let you know that I tried putting all these images into one file, but the file was so large that blogger really cut down the resolution and you were unable to even make out the characters. Sorry!