@tsarstepan,
Thankfully the fan community is making huge strides in their recreations of the original films.
There's now a fairly decent scan of a Super 8 home edition of Star Wars 1977. I haven't seen it yet, but I understand that while far from perfect, it is very watchable.
And the team that is scanning 35mm theatrical prints is close to releasing a color corrected rough draft of Empire Strikes Back.
Five years from now we will all be enjoying very high grade 1080p/24fps scans of the 35mm theatrical prints of the original versions of all three movies.