Keep in mind, conventional brake fluid has an affinity for moisture and "wet" brake fluid has a much lower boiling point than it did when it was fresh out of the can. Switching to silicone fluid eliminates moisture-intrusion issues, but the hydraulic system has to be completely free of any conventional brake fluid, or you may step on the brake pedal one day and find that no one's home. (You haven't lived until you've redone a brake system, filled it with silicone fluid, and didn't find out that it wasn't cleaned sufficiently until you attempted to rapidly slow down from an unreasonably high speed.)
Rather than spending hours cleaning the master cylinder, you're better off using a high-quality DOT 4 brake fluid, which has higher dry and wet boiling points than DOT 3 fluid. Be sure to use fluid from unopened (or recently opened and tightly resealed containers) to minimize the possibility of the fluid having absorbed moisture before it even enters the master cylinder.
While the brake system upgrade was in process, we began shopping for new wheels and tires, and wound up at the Tire Rack's web site. After reviewing all the choices, we chose a set of Sport Edition V6 wheels and Dunlop Sport 9000 tires. We'll have more details about the wheel/tire combination in a subsequent issue.