The main “problem” with Robin is that most of these never been certified in the USA. Therefore none of the FAA STC contain these aircraft, and many EASA approvals are based on US approvals. So Garmin GTN / G500 / G600, Aspen EFD’s S-TEC autopilots are all difficult on these aircraft. It is possible, but is generally expensive. The best would be to team up with a owners group,...