Total Cost of importing a Ford Sierra RS Cosworth to the United States from the UK or Europe?

I've always loved the Ford Sierra and Escort Cosworths that were made over in Europe. Sadly can't even think about importing an Escort Cosworth yet due to it's age, but the Sierra RS Cosworths are now over 25 years old and eligible to be imported into the United States. My question is, easily, how much would it be to purchase an 86-88 Sierra RS Cosworth (Tinkering with the idea of the limited edition RS500 version) and then importing it either from the UK or Mainland Europe? Any info would be great to have to make my decision. And I'd love having other Americans double taking by seeing a Ford they've never heard of before. Thanks!

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