The route you describe sounds like a mix and match of the SLO 600 Kilometer Brevet. Wonderful route - some of the best cycling on the planet. Having said that remember that the wind in the Salinas Valley going north can be brutal.
Pat in SLO has got it right.
Anyone going to the Great Western Bike Ralley in Paso Robles? We will be there with two tandems and two kid stokers.