Finally you gave up with the Deathbox or you are still using it..? Best. Victor.
Hello Jason; Im planing to build a rig like yours, I have the donor bp240. And I have ordered two banjo fittings for the 7/16-20 and 5/16-24 ports ( not sure if those will work). I plan to build now the base plate (same as your idea, in order to keep the rig with minimal dimensions). Do you have a CAD diagram of your plate..? I will appreciate very much. Thanks Victor.