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Could you explain that second paragraph? Why do you want to buy a domain that's not only penalized, but whose links are entirely coming from a site you already own? I think I'm misunderstanding the situation.

As far as I'm aware, you would need a separate version of your page to be displayed. You can then geo-target these pages within Webmaster Tools or use the rel="alternate" hreflang="x". Check out this for more info - https://support.google.com/webmasters/answer/189077?hl=en Hope this helps.