Dan,
At this point I would still recommend this pedal/kit. Although I haven’t gotten mine functioning yet, the support from brach has been excellent. Sometimes components fail. I’d have certainly been bummed if the response was “build at your own risk, sorry!” but it’s been far from that. The circuit isn’t that complicated, the documentation is excellent, and given your experience, I doubt you’ll have a problem assembling this pedal.
Thanks,
Andrew