JokaRed3,
What in the world do you mean, the DA50R is to expensive for what it is? You can get it shipped to you with the standard inverted side Pitts muffler for $600.00, and it will swing a 24x8 at 7k after run in. If you really want to go there, ALL the purpose built engines are to dang expensive for what they are, but the market will pay the price, so end of discussion. If you figure the plane is going to weigh 16 lbs or less, the DA50R is perfect. I have one of the new mvvs58i in my WildHare 28%Edge540T and it is balistic, but that engine would also be "To little for to much" I guess.
DKjens