Anyone have any experience installing anything but vacuum driven gauges? I'm toying with putting a Garmin G5 in my 415C since the electric attitude instrument went TU. A Garmin G5 or Dynon D10a. Trouble is, the less expensive experimental/LSA version of each cannot be legally installed in our Part 23 aircraft without an STC field approval and that can get expensive. Just wondering if anyone has any experience?