I just picked up a Pelican 1610 case for my KPA Toaster + Remote + Exp Pedals/Cables. Since you don't have the Remote you'd have plenty of room for extra cables or tossing in a drive pedal or two if you ever felt like it.
How much does that whole thing weigh then? I've been considering a Pelican case for my setup, exactly the way you have it in your photo! Is that a single expression pedal in there?