Dude that's amazing. I'm tempted to run my data bundle to the ground just to gander at those maps now instead of later today. Also, I am sooo gonna see if I can find some place to he myself some of those niche tools. Neeeditttttt!
I think I've seen it before! My favourite historic U-/S-bahn map is from the Cold War, when U6 and U8 trains went through East Berlin but weren't allowed to stop at the bricked in East Berlin stations: