I'm looking forward to seeing this again, too. I saw it in the theater a couple of times and had a beta tape.
The idea of putting a techno/pop score to Metropolis is a good one. You can argue with the selections: pop music is often of only transient interest, but on the other hand you never know how it is going to sound decades later. You just have to try it.
This is a shorter cut than we have now, but that is all they had at the time. He did insert some surviving stills to help flesh out the story. Replacing the intertitles with subtitles speeds things up a bit. The image is tinted as was commonly done in the silent era, although I don't know if it was ever done with Metropolis.
I have a review of the Kino Complete Metropolis with thumbnails here