In mine I am fitting two MFA 850 motors and they also have a water cooling jacket fitted,and they will be controlled by two Electronic Speed Controllers one for each motor and power will be by two 12v flight packs which cost about £50 each unless they have gone down in price.
I will have two brass props fitted with twin brass rudders.
Spec on the MFA 850 motor.
I also have the Huntsman 31 46" 1/2 Wood Hull Version which will have a similar setup.