David,
A smog shop no matter how nefarious they are will not be able to give you what you want.
Your car is not registered in CA and thus not in the system there is no connection for them to issue you a smog certificate. You will need to go through the BAR sticker registration process that I linked to in my previous post.
I know this is not what you want to hear but I went through this process with several post 1975 imported vehicles. The only option around this is to register outside CA. You will see grey market exotics Boxers, Countachs etc... down here with Oregon plates. California makes it very hard to own imported vehicles like ours.
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