If you're using a Minibrute 2S, why not use the Rackbrute cases? The 6U one comes with power, plus its stand connects to the 2S's frame to provide a fold-up portable situation. You can also, later on, connect two Rackbrute cases to each other in the same manner. Given that you'd get a lot more bang for your buck with these (as they have power + distros already installed, plus they're bigger), those would seem a lot more sensible.