Good catch, Goldstalker!
Although it is very far from Marin, I will vouch for Family RV -- really good folks. See their Yelp listings. I bought a trailer from them -- very good price, knowledgeable staff. I had warranty issues -- is there a trailer that doesn't? They handled the service very competently. The location is not convenient for me -- it takes me an hour to get there, and more in bad traffic.
Having said that, if you buy from Family, make sure there is a Fun Finder dealer near you with a good reputation for handling warranty claims. You do NOT want to drive down to Southern Calif for service!! If there is no reputable FF dealer nearby, and if you are buying a new trailer, buy something else, with a local dealership.
2012 Fun Finder X-139 "Boondock Style" (axle-flipped and extra insulation)
2013 Toyota Tacoma Off-Road (semi-beefy tires and components)
Our trips -- pix and textAbout our trailer"A journey of a thousand miles begins with a single list."