If I were you, I’d go check out that house in Del Mar, its got most of what you are asking for, minus the age of the house. You indicated wanting that older estate feel but having been built in 2000-05 means you are going to have a much tougher time finding that combination. I believe you are going to need to find a custom home versus track home to find that combination. Also I think you really need to go look at these homes. Just because its newer doesn’t mean its well constructed versus a home that’s slightly older may have been better custom construction.
Overall, Del Mar and the adjacent coastal areas are much better location wise IMHO than RB or Poway and I believe will hold its value better. Scripps Ranch burned in the 03 fires, hence a lot of rebuilds that BG mentioned, so ask yourself if you want to deal with higher wildfire risks being further east