Scared to ask, RV-10 options?

[tsaG]

I live in Brazil (for now, I have an American son). I visit a hangar near the Flyer factory once a month (there are at least 4 in the final stages of construction right now). If you have any questions about the "Jet" model with the SMA engine, please send them to me and I can try to get those answers personally.

How much would a complete FF Kit including engine cost?

 

[Fenderbean]

Okay so I watched and OKS video today from deltahawk and they stated they have to run 3 blades due to the harmonics so is this how the South Americans are doing it without issue?
The person here testing it had a three blade prop, so what are we missing?