I'm building a Creek Hobbies Extra 330 with a Moki 2.10 and have a few questions?

1) Should the elevator servos (2) and rudder servo (or servos, see question 2) all go in the tail, or should some (or all) go under the canopy to achieve correct balance?

2) Should I use 1 or 2 rudder servos?

All servos will be Futaba coreless S9202's.

Thanks