Just bought this last year, from an owner who had for 7+ years. IMS was never changed oil changes do not show any flaking you'd see on a bearing breaking down.
2002 Boxster S, 96,600. I have had the car over 6 years now. As far as I know it has the original IMS, RMS, clutch, flywheel and water pump. It doesn't drop any oil or use any. I have put about a pint of water in the tank since I bought the car.