Magnolia cambellii

I am looking for a place to purchase a Magnolia campbellii in the San Diego area. Any recommendations?

I'm not familliar with Magnolia campellii. Sunset Western Garden Book says it does not do well in coastal areas of San Diego, if I am reading it right. Sunset zones 4-9 and 14-21. There are some parts of the county in the foothills and mountains, but Sunset also says 'best in 15-17' which is way up near San Francisco. It may be possible to speical order it, but I doubt you will find it in local nurseries, especially near the coast. You might check the 'Ramona area' there are some nurseries in that area that 'might' carry it.