Actually there would be one more option. That is to use 2.4GHz WiFi for short range telemetry link to ground station tablet or computer to set params or load missions. And use the ArduPilot FrySky telemetry on the RC link to the Taranis. There is an open source script for doing this developed by Alex Apostoli
The only downside right now is that if the telemetry link is dropped on the R9 radios due to getting out of range, it does not pick up the telemetry again until you re-boot the receiver. But that being said, I use it and have never had an issue with a dropped link on the R9’s, only when during testing it for range have I discovered the telemetry re-bind issue.