kk650 said:

Getting the colour grading 100% consistent would require a very slow and thorough shot by shot regrading of the film, knowing what the lighting conditions were for each scene and what intentions GL and co had in terms of colour grading each scene. Only the original cinematographer most likely would have the knowledge and skill to be able to achieve such a feat accurately.

I'm not certain it would be totally consistent from shot-to-shot even if you had Gil Taylor and his camera crew sitting next to you, along with notated original shot lists. And even then, accuracy would be relative — this film is a product of its budget and the analog era.

That said, you have established some very nice color palettes for the film here. I just don't think that you'll get anything global at the level you're working at, which is something of a testament to your attention to detail.