I would look for something around San Francisco for a base for day trips in this area and a second base in Monterey for Pt. Lobos to Santa Cruz and the Monterey aquarium, and a third at San Simeon State Park campground (Paso Robles wineries, elephant seals 8 miles north of town of San Simeon, Hearst Castle, Morro Bay).
A place that is overlooked in Monterey is the RV park at the Monterey County Fairgrounds which is blocks away for the downtown area and the beaches and the harbor and the wharves. It is also 5 minutes from Highway 1 to go south to Carmel and Pt. Lobos or to go north to Moss Landing and Santa Cruz.
Traffic on Highway 1 in Santa Cruz is usually terrible and best to avoid. I live 35 miles south on Hwy 1 and it can take 90 minutes or longer to get to downtown Santa Cruz any day of the week. Coming into the San Francisco bay area via Hwy 80 is where I would start the trip and take in the city, Golden Gate Park and the museums, Ferry Building, etc. and then down Hwy 101 to the Monterey area.