Actually, judging from the skintones, the red-shift in the GOUT is pretty consistent throughout the film and I don't believe it to be the result of the prints fading but rather of a miscalibration of the machine on which they were telecined, because from my experience, this is not what red-fading looks like and also, the red-levels are not only consistent throughout the film but throughout the entire trilogy, including ROTJ, which was already printed on low fade stock. And since this method of increasing the saturation of all but the reds seems to give great results in other scenes, I'd say it is a pretty good reference here too.

Another problem is, that once you start pulling reds down and blues up in the DeEd, the whole image starts looking monochromatic.