Futaba
For futaba stuff I would go with 9001's or 9202's for your controls... that will do well in a 50
you can do 525 hitecs for throttle.. or even what you have not for throttle.. I like the higher speed on the 525..
Depending on the gyro you have for the tail... No matter what the really good servo would be the 9253.. but then again depends on the gyro your running..