I love this! I did read the originals before the Kerths, but I don't remember exactly... I'll have to hit them again anyways.
Independent of that, this was very clear and well-written. Lois knowing he's Superman, the Kerth, the fall of Luthor. A lot was encapsulated in this short span of time. I particularly like the detail of Clark leaving his door unlocked-- you'd think he was raised in a barn or something.
Great story!