65 gal setup

Okay, I've got a 65 gallon corner tank that is just sitting in my house right now. I'm not going to set it up until I move into my own house. Hopefully not too much longer. Ideally, I'd like to put 4 discus, 1 elephant nose and a small school of a smaller type fish. Possibly harlequin rasboras, maybe some kind of rainbowfish. Still have to do some research on compatability, but I've got around a year before I set it up.

But since I've been wanting an elephant nose for some time, I figured I'd tailor the tank settings to his liking. I'm going to put a pipe in there so he can hide from me all the time!!! I'll more than likely add more than one exit also, but was too lazy to model it up right now. I just needed the overall dimensions so I can build it when I'm ready. And since I'm going to put a pipe in, I figured I'd make a tiered tank while I'm at it. That way it'll have two levels, and I may modify it for 3 and put another level in the far back corner, but only 2 for now. Here's what I have in mind...top down view from in front of tank.

Here's a top view. Let me know if someone sees an opportunity for improvement and even general opinions.