Heh. I have one but it's occupied! It is an unusual size. I bought it used. I'm not sure that this size tank is manufactured anymore. I am looking to upgrade my tank eventually, preferably to a 90 g. Are you looking for a tank to fit into a particular space?
Yes, I have a cabinet that's just one inch too short for the standard 18" wide aquariums. I suspect you're right about the 16" wide ones not being made anymore. I was pleasantly surprised to find one on Kijiji last week but it got sold to someone else unfortunately.