The issue really is not as difficult as people are making out.  The reason for this is that within the Hanafi school there is room to accomodate both views (of following the calculations of the observatory and following the sighting in another country). So the real the issue is that of choosing one of either and then getting the whole community to agree to it which, in a country where there is no central binding religious authority, creates a problem. Therefore, an individual should follow the view being followed by the majority of the close family members around him/her to prevent disunity and fitnah.