It hurts my back to work on my tank for long periods of time, I have a folding painting platform that I can stand on (I am 5'7") so I'm at the right height, but it is uncomfortable to work in tanks that deep. You will be in there a lot, especially in the beginning! Depending on the stand height, that 6" more than the 24" really adds up, you have to remember you have to reach over the front side before you can reach down into the tank. At a certain height access without using specialty scaffolding becomes limited or impossible.
Theres a guy on craigslist here selling a custom 36"X36"x36" acrylic cube. It's made with 2" acrylic (obviously not well thought out). Comes with a stand and sump. In the pic there's someone standing in the room with it. There is no way you can get into the tank, let alone put anything in it without just dropping it from an 6' ladder on to the bottom, or just pitching it like a basketball from the floor. (Probably why he chose 2" acrylic to use:rolleyes:).
The tank probably weighs 1000lbs with no water in it lol.
Just because someone made it, doesn't mean it's a good idea!o_O:eek:;)
I know you already know that, but it's true! :D