Im planning to build a stand for the 150 I just got, its 72x18x27. I plan to do this build http://www.monsterfishkeepers.com/forums/showthread.php?t=297517 . However I dont know the dimensions he used for the stand. Since the tank is 72x18 how long and wide would the stand be? I was thinking 73x20 to have a half inch on the sides and 2" in the back.