Hi Sam, yep that's been my quandary over this whole project. The company making the pcb and part of the wiring loom actually has a minimum order quantity in the hundreds but I've managed to get them to agree to do 20 for me (I kinda blagged that this was a prototype run, and much more would follow...!) but at a much, much higher price than an actual production run of course.
The minimum order number is 20 units for me, so I do need confirmed orders before I spunk out a couple of grand on this as you can imagine.
I'm always wary of organising something like this as it still amazes how many people are definitely interested, only to decide against it when they have to spend some money.
If I can get 10-15 orders then hopefully the remainder will be sold as time goes on and not leave me out of pocket, but I'm in no hurry to get shafted over this hence my thread outlining the order process.
Time will tell just how many folks are interested, and if we start getting numbers up to 30+ the price should come down by a tenner or more hopefully, my negotiating skills dependant! I'd then refund folks the appropriate amount by paypal should this happen.
I'm actually caught between a rock and a hard place with these as there's a huge amount of work for me to do with each module when I get it in order for it to work on the R35 and I may regret doing this completely!!