I forgot to say that if you’re coming back next summer, then it still will be a long time from good time to buy.
Why not rent in a good neighborhood for a few years? With what it would cost you in interest on a 800k mortgage, you can get a nice rental.
If you rent, the rental rates in Carmel Valley are about the same as Rancho Bernardo. I think that the coastal areas on the 5 are nicer than the inland neighborhoods along the 15.