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To the second part of your question: Server location should not be a factor here at all. The single most important factor is the language of the sites. If you set them up in spanish, french, dutch etc no major engine will refurse to list them.
Furthermore local domains do help. Where they are served from anyhow does not matter.
For obtaining local domains there are two ways generally: Go to a registrar who handles international domains - or use local registrars. A start are the appropriate cats in ODP>world>[country].