Hello Chai,
I have not lived in the region for going on 15 years now. My rat just decided one day that he no longer wanted to race. Plus I really wanted a true country life, meaning land and housing I could actually afford. Temecula is beautiful, I love the wineries and the lifestyle, the old downtown section and the modern malls, but it all became just too crazy for me.
One thing you might could do is place ads on permaculture sites like this one. They are usually really cheap, like $50 or less and run for a month or more. Explain that you are willing to trade experience and knowledge for labor. You might get some people that take a vacation in Temecula and will help out for a few days!
One other thing I would do, contact the Fallbrook CA. Village News. I know the Editor there, (use to work for her) and Fallbrook is sort of a permaculture enclave in many ways. It's only 30 minutes away and people from Fallbrook shop and work in Temecula anyway. Put an ad in their classifieds mentioning the labor exchange for knowledge and I would not be surprised if you get some bites. Village News has a sister paper in Temecula too, so you might want the same classified in both.
Also, I know the local High School has a "Press Department" that does features on the Village News and the Sister Newspaper's website. If you mention your unique situation, they might send a film crew out! They are always looking for interesting stuff to put on the websites.
Lastly, if you are lucky, Julie Reeder might answer the phone, though these days she has "minions" that do that. (She is the Editor\Owner, but you never know.) I have not worked there in forever, but you can always try to open a door with my name. She will remember me, but most likely everyone else I worked with is gone. Kay might still be on the phones too. If she is, she will remember me too.
I will shoot Julie an email if you like and let her know about the unique situation you have. What's you contact info? You can PM it to me or send it to
1ylekiot@gmail.com
Jeff