Sodium and Potassium is something to keep an eye on. It doesn't look like the oil is formulated with it, it's usually in the 300-400 range if it's part of the add pack. I don't know why the radiator change would put coolant in the oil unless you have a front mounted oil cooler that you disconnected as part of removing the radiator.
Also, your silicon is somewhat high at 17ppm for 5000 miles, check your air filtration.
Otherwise the viscosity and TBN look good for a longer interval. I agree to check back in 5K and see where you're at with the P, Na and Si.