klokwerk said:

There was "Metropolis: Morodered", and I believe that one is an LD transfer of the original Moroder version. I don't have that one.

I have an LD preservation of the Moroder version, but that wasn't the name of it. Looks like the BluRay is prettymuch the same, but also looks like a bit of restoration went on, judging from these screenshots: http://www.blu-ray.com/movies/Giorgio-Moroder-Presents-Metropolis-Blu-ray/28183/#Screenshots

There aren't any shots of the "creation", but you can see from this one shot that they did retain the multicolored segments: http://www.blu-ray.com/movies/screenshot.php?movieid=28183&position=7

klokwerk said:

...I'd be curious to see if the colour could be lifted and applied to the high-resolution blu-ray transfer with minimal effort.

I still don't understand why you guys want to do this. To me, it makes as much sense as using a perfectly transferred BluRay version of the OUT (hypothetically) to reconstruct Harmy's Despecialized.