I'm sure that you would have to buy one from a California dealer in order for it to meet CA emission standards.
I searched CA dealer inventories & came up with these three:
(actual window stickers)
http://fordlabels.webview.biz/webviewhybrid/WindowSticker.aspx?vin=1FTRW14598FA72518&ref=VL
http://fordlabels.webview.biz/webviewhybrid/WindowSticker.aspx?vin=1FTRW14598FA84829&ref=VL
http://fordlabels.webview.biz/webviewhybrid/WindowSticker.aspx?vin=1FTRW14598FB15433&ref=VL
^that should give you a good idea of the price ranges.
If you're still interested you can search actual dealer inventories in your area by going to Fords direct website & then contacting the dealers that have these vehicles for sale.
http://www.fordvehicles.com/index.asp
I hope this helps.