Share 'interested in creating a 7-9 day hike this June in Northern (or Southern?) CA'

Hello all, So glad to have come across this resource and the Walkabout guides.  Just bought the NorCal one yesterday and having been looking through it on my Kindle and really enjoying it so far.  (Might get the paper version for the actual hike.)  My husband and I would like input on either putting the SF-Half Moon Bay route together with the Marin hike north of SF, vs doing the Marin hike plus…