We ruled out remote control as it would require a global network of operators standing by whenever the aircraft was flying with a single pilot.
Plus the aircraft already has autonomous everything, so it seemed sensible to use the equipment already fitted (and probably controlling the aircraft 90% of the time anyway).
Thanks for your interest though!
Pilot DAR: Really like your idea about the control column.
Genghis: The pilot over-ride is a slightly tricky one. We initially thought of a PIN number, but the lecturer reckons in the heat of a systems malfunction, the last thing the pilot needed was to try and bring to mind a PIN number! Far better to have a couple of manual over-ride switches or buttons, which would require simultaneous operation (perhaps).