I'm scratching the Ag Cat 164B Turbine. I have this photo.

I'm seeking help with the engine choice? I know nothing of the newer engines available today. Absolutely nothing.

The span is 80" and the cord is 9.5"

Fuselage length should be around 55" or so, but I may extend it a few inches. This math gives me a scale of 1/6.

The aircraft is simply the Ag Cat with a replacement engine up-grade to the turbine.

The nose moment is long so weight is a factor, but I need power and torque.

The model will be 4" wide at the firewall and sport a 3" spinner.

I haven't determined weight? Possible suggestions?

I have builders plans partically drawn and an airfoil choice.

I'm not locked in, but I'm thinking a 2 stroke OS 120 AX. I'd also like to sport a three blade prop for better scale appearence.

Any interest, suggestions, guidance or help will be appreciated.

Thanks in advance

Charles