Good work and commitment on the re drive project.
What will sell them is once you post some numbers, ppics and videos of the better performance.
I gave Rick at GSC all the lazair prop sizing last year for different engines but not on the re-drives. I forget the pricing now but can find out. Not alot of margin in props to offer discounts in my opinon. I sell GSC props and Rotax parts and can get you a price if needed.
Call direct toll free ,
http://www.rotaxservices.com/
Shorty .............