AntcuFaalb said:
If you're not a purist (and there's no reason to be when you consider the constant pre-97 tinkering), then check out Harmy's work.
What was done pre-97 is very far from constant tinkering though, a revised opening crawl/shot for the '81 re-release, that's it. The few print variations seen and mostly heard in cinemas back in '77 is hardly anything unique to Star Wars, different and alternative audio mixes prepared for different formats and theaters was very common back then. An additional audio re-mix was of course done for the '93 home video release but that has pretty much become the standard nowadays whenever a new video release is made.