I feel your pain. We have similar "list" restrictions here in MA.
While I suspect the reason the model you want isn't on the Ca list has nothing to do with the "lack of rail", I'm betting ( like us) , there is no legal way around it . ( Other than to wait for updates to the list.)
That said, I see the full sized stainless version is on your list. That gun should be the same minus adjustable sights and blued finish. It would be simple to change out to adjustable sights if that's what you want. As for finish, It's personal but I don't feel the finish on the blued S&W 1911's is that durable anyway. ( My nephew bought one and had holster wear on it after just a few uses. He now regrets his finish choice.) You could always buy the stainless and have it coated if it's a color thing. Personally, I like being able to buff my holster wear/dings out.

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Dave