For the sake of clarification; those DVD shots are not the original theatrical colours as implied by the first post. Those are the digitally "enhanced" colours from the THX remaster. By all accounts available (including Dean Cundey) the 35th anniversary BD has the most theatrically accurate colours of any home video release.

I appreciate that your project is trying to restore the revisionist colours for those who prefer that look but to refer to it as the original colour grading is just incorrect.

That being said, I look forward to seeing your results as always.