bose_x
Without trying to be controversial; how do know for certain that the items you have listed are really satisfactory? The reason for instance, the prop is checked (3 or 6 years) is not only to check for bearing problems but to ensure that the seals remain in good shape. How can you ascertain this without stripping the hub down? As IO has pointed out with certain magnetos they are deemed to be good for only 4 years regardless of hours.Very often it's not the hours that are the limiting factor it's time in service where corrosion can set in and cause failures. Who would get the blame if your seatbelts failed in an accident? Not you but your maintenance person for not complying with the requirement.
There are more worrying things going on the aircraft world other than maintenance; what about fuel & oil supplies, airfields closing, lack of facilities and limited hours due rising costs.