Mike, the story starts out with answering "what if Alt-Clark from S4 was dropped into Metropolis arriving at the same time canon Clark arrived", so it kind of needed to follow along the same plot points as S1. Things have shifted a bit, since he handles things differently than canon Clark does and it kind of has a ripple effect on some things.
I looked at the beginning the premise is what makes me want to start but 240 parts?? (I am actually giving you credit for keeping to the 2/3 done statement which probably is not wise...) Tolstoy's got nothing on you

So, it's less messy if we write.
And more fun to clean up I bet.
Thanks again
Mike