I would not worry about the time factor. It took over 6yrs to get 32k on mine and belt was changed this time last year for the first time.
I would run it right up to 75k because there is always the chance that the water pump or thermostat could develop a problem and presto Fidelity would pay the labor charge to open her up. Oh yeah, talk with Speedtrapped about his service guy. If its not too far I hear his prices are excellent. Hell, if you were on the left coast we could do it on a Sat at my house. Pat! send the special tools! Haha
The old pink eye two block method to open up the lock support. Hardly a drop on the floor.