Hello,
You have normal and not paranoid way of solving problems. And I agree with you 100%. I'm just new to photography and affraid of dust very much ! Ok, I've cleaned with O-ICK1, I'm happy and sensor is like new. Have some dust left on sensor, but its impossible to see on "normal" photos even with F40. So in the end I'm happy with dust handling.
Yesterday has happened interesting thing. I took some photos outside and didn't changed lens. I came home, checked again with F40 and saw HUGE dust particle on the sensors. Looked at photos and it was impossible to see ! So I realized how much I'm paranoid. So I took my O-ICK1 and again happy. I think I'm getting more mature in photography