Unless you're going to build a race car and have Lang Racing do the work, a full rebuild is overkill. Otherwise, you'll be fine with WPC treated bearings.
My car has similar mileage to yours (70k miles = 112k km) and I'll probably do the rod bearings closer to 100k miles or when the oil pan gasket leaks, whichever comes first.
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'08 Z4M Coupe | Space Grey/Imola Red Extended/Carbon Leather | Eventuri Intake | Strömung Exhaust | Strong Strut Front/Rear Braces | 19" E46 M3 ZCP Wheels
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