RE: Savex L39
Build one for a friend.
Lots of information in rcxxxgroups.
Used two mini hitec digital servos for elevator, one standard servo for rudder, two mini digitals for ailerons, and one standard servo for steering. They were high torque max 70 oz inch.
The jet a1 retracts considered over priced and had problems with the front retract, check tams jets formretracts.
Not sure about the specs of your motor but the one i build was neu ans used 50000 mha 8s and produced about 2800 watts.
Go to the other site for best info.
Cheers juan