Thank you both for your good suggestions. I think that we will visit both city and countryside.
This is a first draft for an itinerary.
Day 1: fly Zurich to Munich (5 nights/3 days)
2- Marienplatz, city tour,
3- bike tour, Residenz Museum, Cuvillies
4- day trip - Dachau Memorial
5- final day in Munich, neighborhoods, music, food??
6- check out of Munich accommodations.
Train to Fussen- Hohenschwangau, then Neuschwanstein Castle tour, Mary's bridge,
Then I'm not sure whether to stay the night in Fussen? or rent a car late afternoon to BF?
Night 6 or day 7- Fussen to Triburg area. 6 hours by train or 3 1/2 hours by car.
7- Triburg, Hornburg, Gutach, Hausach (2 nights/2 days in BF)
8-
9- early train to Zurich for afternoon flight back to San Francisco.
Is this a good balance and am I allowing enough time in BF? I'm wondering if it makes sense to have a guide in the BF area to make the best of the short time we have there? Or use regional trains and busses to go up and down the valley.
Thank you again for your help.