While I have some time on my hands I thought I'd take a stab at making my own backplate. I've looked a a few different designs that would work with a couple modifications. The biggest one is the cut out for the Kraken. I printed out one design and set my Kraken at the top so half the regulator is above the top of the plate. It takes up a lot more real estate than I thought it would. But that is also the full diameter of the regulator.
How low and wide should the cut out be in order to accommodate the regulator?