Interesting.
I know you said you added a villain, but did you delete one, too? Why did Dr. Simmons call himself p53? That needs to be explained.
Also, if this was all a hallucination then why did the villain get upset at the sharpshooter because he (the sharpshooter) couldn't tell him whether or not Superman had been hit by the kryptonite bullet?
I do like this story, but I'd be interested to see the original one, too.