I am building 2 warbirds and I am looking for servo recommendations for the ailerons, elevator, flaps, engine rudder/tail wheel. I am also looking to get battery pack recommendations also. I would like to stay with Futaba servos, but I am open to a professional opinion. Thank you.....

CMPro Corsair 120:
75.5" wingspan
Robart mechanical 608HD retracts
Futaba S136G retract servo
Flaps
O.S .91 FS-II Surpass with pump
Weight 11.5 lbs
7 servos total

World Models P-51 60
65" wingspan
Factory installed retracts
Futaba S136G retract servo
O.S .91 FS-II Surpass
Flaps
Weight 8.4 lbs
7 servos total


4.8 volt or 6.0 volt?
How many Milliamperes should I go - 1000?