Wow. For $429, I'd expect favors... That doesn't include the tank/hardware either, right?

Seriously, if I were in your shoes I'd have Ace build me one, and if you like Eheim, have him design it for one. He can certainly make the media container square, if you like that - it's probably cheaper than the insanely priced tubing! These aren't the most technologically advanced items you can have in your reef system...