RE: Airplane rudder gyro
Futaba doesn't really have an airplane gyro that's currently available. You can use the GY401, but you'd want to have it in heading-hold mode for takeoff, and then flip the switch to have it in regular mode with low gain. That could possibly help your takeoffs and then be as close to being turned off when you flip the switch to take it out of heading-hold mode.
This may work out, but we can't be sure. Heli needs are different from airplane needs.