up to 0.003" in the lower end of the rod wont matter too much. New fits are 0.0015 ideally, but some engines are still 2, 2.5 or even 3 thousandths.

If the wristpin is that sloppy it will probably ovalise and cause grief before the lower end goes south... I agree. Get some Sig all castpr fuel and fly the thing

AJC