An update on my sun path mod: the scripting movement of the sun is now done, I can calculate all elevations of the sun for the whole year on all areas of the Earth (except the Equator for now).
Sample of what this mod will offer:
At the north pole, the sun will spin around in a circle, and not be visible at all towards the winter months.
At the arctic circle, there is one day where the sun doesn't rise and one where the sun doesn't set.
At the tropic of cancer, the sun is directly over head at the summer solstice.
I'm waiting for Badspot to make a hook for custom sun positions while day cycles run.