I'm looking for the same thing! Seems most of them have some space limitations on the bottom shelf, ie, ability to fit the carboy or bucket. And then if you raise it to accommodate the "indention" from the compressor then you run out of height in some of them, allowing for the airlock.
I live miles and miles from a store that would carry one so taking my stuff in is really difficult. Online research doesn't give much info about that bottom shelf.
But I found what looks like it would work....Avanti SP2501B, no compressor and therefore no bottom problem. Online chat says it has a 15x13 bottom!
I'm going to need that here in Louisana soon....