I just googled "sonoma rv campgrounds" and the response was a large list of sites. If you're in Florida, add "California" to your search argument. I don't think you'll have any problem finding a place to stay. It would be useful if you have a map near you when you're surfing, as there are several towns that will come up in the search results, like Rhonert Park, Petaluma, etc. They're close by and are alternatives to the immediate Sonoma area.
Good luck, it's a really nice place to live/work especially if you like wine ....
As far as I know, this is the oldest I've ever been.