Someday, when I have a house and a small truck, craigslist will be my best friend. Until then, it is an enemy.
Thought the same thing - Based on the dimensions in the CL post(12.5 x 24 x 48) It sounds like a 60-65-ish.60 to 80 gallon...interesting.
Also, even houses eventually fill up. I have two 55, one 12 long and one Fluval Edge 12 free CL finds just sitting in the garage right now.