The size of the glass pieces will be:
11.5" x Width of Tank
11" x Width of Tank
12" x Width of Tank
10" x Width of Tank
10" x Width of Tank
This will give you a 19" area for a fuge and live rock filtration area, as well as a nice deep sand bed. I have quite a few sponges in the first inlet chamber for all that fish poo. The skimmer area of 14" leaves you about a 3" space for the ASM G3.
We'll build it this weekend, if you want. Everyone else, please comment if there are any additions to the design you want to give.