It includes the boost, though I don't know how accurate it is (I've also made the tayda SHO pedal but have nothing to compare it to):

https://www.taydakits.com/instructions/box-of-rock

I agree about having broken things sitting around. It bugged me that I'd made such a rookie wiring mistake with the knobs in the first place, and then when the stomp switch died it just sat looking sad and driving me mad for a few months ha ha