I'd love to build our own miners.  I've been working with computer's for roughly 30 years myself.  Originally went to school for electronics, got sidetracked by the pretty pixels, but have always had my hands in the hardware side changing and modifying things.  I look at the hardware that Gridseed and Zeus have put out there and am baffled by some of the design decisions they chose.  The week power components that were used on the blades, and Zeus with wires coming off the boards on two ends....I suppose if you like a messy setup with cables everywhere it would be alright.