I have made a rough diagram of how I would like the tank built. I have found a company that can build the tank for $100 cheaper than it would be to DIY it!
The tank will look simular to the photograph below and every panel except for the front viewing panel and the top/ lid will be solid black.
All 3/8" Acrylic including the top that will be a solid piece of acrylic cut to fit (octopus is not escaping, this will be the Alcatraz of aquariums!).
The tank will have 3 holes cut in the bottom (behind the overflow section), one 1" drain (center) and two 3/4" returns either side. I have requested the teeth for the overflow be cut as small as possible, they will be 1/4". Just to be sure i plan on putting a plastic mesh behind the teeth, just to be sure. The teeth will be 6" wide (centered) and 1-1/4" deep.
The tank is a custom order so may take a while to build and arrive. In the meantime I have the plumbing, sump, and stand to design.