Hey Archie - I believe we are at around 37 now, and although there isn't a magic number that will set the wheels in motion, I'd say at least 50 confirmed orders would be a good start. Considering there were close to 80 who said "I'm in" (but we all know what that means....) I think it's achievable. The biggest challenge now is projecting material costing, and determining a firm price based on those pre-orders. Everyday, more names are adding to the list, which is a good sign at least.
If anyone else is keen to participate in this project, please get your name on the list ASAP so we can move forward with it. We are at approx 50 sets thus far, a far cry from the initial response when this was announced in spring. Don't miss out, as this may not be repeated.