I have not used it overseas but can say that Amazon spot instances are perfect for this, you can start and shut them down from the web and can remote desktop them to run, there is some lag so no good if you need them at lightening speeds.

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"If the corporates are treating you poorly , just go elsewhere."
"If they need you , they will soon find out."
"If you need them , you will soon find out." --moeee
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