AFAIK, Mesa doesn't sell their 'airhead' 2x12 cabinet as a stand alone, but I found an M6 Carbine combo. The amp can be replaced with any 2 space head, as seen in the pic. It's a bit heavy though, even for a neo cab. Sounds great and gets the job done.
For 1x12, you could go with the Walkabout, very popular here on TB, but the head rack is mounted on the rear and it isn't a full 2 spaces.