I know that exchanging or "core" charges may complicate a project that aims to be very simplistic and straight forward. It may be possible to have a "complete" miner and a blade for the DIY guy but that will depend a lot on the final design from Sidehack.
Having stackable boards requiring just a raspi to run or boards you can put in a wooden frame like in the good old days of GPUs would be a plus, IMHO.
Or something like the m/h boards of the first bitfury rigs; maybe they can run with just a fan blowing on them.
spiccioli