I was thinking about this and I figured
1) Make it copy left
2) Making it only available to Project Guitar Members
3) Asking for money only for parts (maybe ask Brian to handle the money because he's probably the most trusted here)
4) It's only an idea. It may never actually happen but it would be cool to see something hard and real coming from Project Guitar.
There seems to be a lot of people wanting piezo FR's (I want a 7 string one) so there would be the want for them. And I'm not talking about copying a folyd rose exactly. Kind of a Lo-Pro, Edge, OFR, Wilkonson, Kahler trem combo monster.