1993 Audi S90 - heater core / blower replacement

,

My girlfriend has a 1993 Audi S90, with 150K miles, but is in decent shape.



The blower motor and heater core need to be replaced. I’ve done some research and found that while replacement parts aren’t very expensive, getting at the parts to replace them is VERY complicated and time-consuming.



Is this worth doing (given that the car is 17 years old and it is more than likely other parts will fail due to age)?



Adam