I asked only because I wondered which one of the very few (Leipzig, Oldenburg, FH Aachen) is unaccredited. If you don't mind losing a year to learn German, enrolling at a regular university in German is a best solution.
Scholarships are rather rare. Try to look at the Austrian consulates nearby.
I do not know anything about your lifestyle and standard of living, but residing in Vienna is not that expensive, especially if you are single and ready to adapt. I have friends that manage to live off ca. 500 euro...