I'm back to working on this. I have bits written and some outlining but writing the story is much slower. [2010 edit; never got anywhere, I can not write.]
The version I am working on starts with an unpowered Clark. Major Whamm in that I both senior Kents dead and Lana Lang as well.
All died in the same auto wreck. someone has a story where AltWorld's Clark's parents were killed by a truck driver having a heart attack.
I'm going to have them (all three) killed when Clark was 16 and out of town so he can't blame himself.