Can it not instead be left to a minimum spec, engineers and inspectors to provide quality control, then pilots / owners to do their own risk assessment as to whether their plane is safe / capable in the conditions? If you want the extra checks, you pay for them an amount which is probably larger for an initial assessment, then a slightly higher ongoing permit amount.
Given the problems if something goes T U. -I'd think an inspector would place a handsome premium on his signature....also, recurrent inspections would probably carry similar burdens, UNLESS it was of the cursory, "yes, it's still installed" variety.....otherwise i'd assume an extended test-flight to cycle all IFR equipment and confirm it works.
That brings us to the middle bit.......Unless one bears a grudge against a particular Pilot, the average pilot/Owner has a vested interest in the safe operation of ANY flight by the aircraft concerned.
Most Darwin Award candidates would not bother with a license or any of the associated ratings.....therefore the proposed system would most likely be self-regulating,despite the forgoing reservations.