Congrats on the property. From the satellite image looks like you might be in the Campo area?
My favorite group in San Diego that offers a
PDC is the SD
Sustainable Living Institute. They are already into a PDC right now but will probably have another in a few months - they do offer them on weekends. There are some other groups that offer them but I'm not sure if any are coming up.
I would highly recommend
Brad Lancaster's
books Rainwater Harvesting for Drylands and Beyond Vol 1 and 2. Sooo much good info in those books.
If I had more time I would offer to help with design and implementation. I am slowly building a
permaculture education and demonstration site in Ramona. If you are in fact in the Campo area I know one or two
permaculture people that live in the area who would be stoked to help.
If you do decide to hire anybody for
permaculture work I would recommend Ecology Artisans.