Keep in mind as an international student there are only 5 schools in the U.S. that are both need blind and meet 100% demonstrated need. There is heavy competition to get admitted to these schools.
As an international student most schools that meet 100% demonstrated need will also look at your ability to pay as an admissions criteria.
If you need significant aid, as an international student, you gain no advantage by applying ED. In fact you could be messing up your chances. Ed is honor bound based on the premise that in exchange for an early decision, if accepted, you will attend, you will withdraw all other applications and not make any new applications. By applying ED should you get accepted, you will have no way of knowing if this is your best package because you lose your ability to compare offers.