There has never been an official home video release of Star Wars with both the theatrical video and theatrical audio (I think even the 35mm print at the Library of Congress has the altered 1981 crawl), so fan preservations are all there is for most people, and the ones you mentioned are the ones worth mentioning.
I'd say your definition of "original" is a bit weird--Star Wars was shown theatrically with three different mixes, all of which could be considered original. The order in which the mixes were completed is more of a production footnote. Does the movie Clue only have one original ending because it was the one completed first? No, some films simply have multiple original versions. Depending on when and where you saw it, you got a slightly different version. There are also those who argue that the mono mix is the "true" original mix because it was completed last (so obviously more care went into it than the others).