RE: Saito FA 45 Prop Driver Removal - Help
In your case, I would contact Hobby Services (Tower) and ask about getting them repaired if they are still under warranty.
If not you may want to call a repair outfit like Tony Stillman and explain your problem.
Some five or six years ago, the guys at the field had a Hitec programmer that the shared between themselves. I know they changed some Hitec servos but I don't know if the programmer worked on other brands? I've never seen a Futaba programmer.