Not quite a 90, but close'ish. Damn nice setup though!
http://www.canreef.com/vbulletin/showthread.php?t=73441
Also, I'm just in the process of re-building a 75 with new glass in the front which I'll be selling with a metal stand for about $175 or so.
Just thought I would dangle those two options in front of you. ;-)
Scott 604-240-9717