I fitted mine brembo pads today. I have the wear indicator outside the disk so it is easier to see.
It really should make a difference but having them outside will be easier to to see the wear limit on the pads
Parts wise you be looking at 550-600 on new clutch and flywheel
Unless you can fit it your self, if not you be looking at 300-400 labour
It is all down to how the owner drive the car.
They could last 100000 miles or 40000 miles.