I've got no pics to hand just now as its in my workshop and I'm posting from my phone but off the top of my head, the cabinet is 1500mm high, 900mm wide and 700mm deep, so it doesn't take up that much room really.
The pot can be wheeled around to suit, so that's not really an issue. Obviously that's not allowing for the compressor, but the blasting set-up is fairly compact. You can get smaller desk-top cabinets or smaller floor standing ones, but I wanted one that was big enough to get a wheel in and space to work round it.