Fun and amazing challenge.
I will blankly admit that I do not understand the ½ of it, and my take on section III was the lazy one.
But shout out to @danilang for showing the way and make a macro.
First I did the logic for Section I and was about to replicate that to Section II, but since they are the same, a macro is the right way.
Yeah, so obviously I did not solve Section III as it was intended, but still this challenge had me intrigued, and I have spent some time on reading up on this sculpture
Apparently the artist has given a hint to Section IV, that the characters 64 to 74 is BERLINCLOCK as that would help 😄
Here's my solution to sections I and II