Found this a little cheaper than their bag, its on sale right now for $67, regular is about $87. Its designed for Dslr cameras and is highly configurable with a ton of inserts so you could use it for the Kemper and for other electronics like cameras/laptops. It will hold the Kemper, power cable, foot switch and foot switch cable without much trouble in a snug fit so the items wont move much.
http://www.amazon.com/dp/B002Q…79&sr=1&keywords=ape+case
Pics of Bag and Kemper: