Wanted: looking for either 150 or 180 tank

[chwkreefer]

I'm looking for a tank, either a 150 or 180 gallon. I won't need it for a couple of months so if anyone hears of anything I would appreciate if you could let me know. I might just pick up a new tank, but if there is one in really good shape for a good price I certainly would consider it. Both the front and the back of the tank would need to look good as the tank will be built in between walls for viewing on either side.

Here are dimensions I am interested in.

60"L x 24"W x 24" H
72"L X 24"W x 24"H

Thanks
Bill