I mentioned in another thread to look for the brand "Mary's Turkeys". They are a Fresno area family producing heritage, organic, and free-range turkeys. That would also allow you to support a producer only a couple of hours away from you.
They used to only do mail order but now sell through stores instead. The website lists who stocks them. Around the Central Coast it looks to me like you should find Mary's Turkeys at New Frontiers Natural Foods in SLO.