A DIY version of HAS PCB is out of question, I get tons of different questions and barely have time to support people with their setup problems, cabling etc. as it is.But would you consider offering parts as a DIY kit? I'd be happy building my own, guess I could sacrifice my existing HAS if I wanted to, but maybe you could consider offering just parts, so you don't spent time on building them yourself. Just an idea.
Some kind of kit where you just need your own case, power supply and JAMMA harness makes more sense, but again guys - it's too early to promise anything, we only started to talk about it yesterday, please give it some time, I want to have something tangible first.