I don't get what you gain by saying that time was stretched or that it wasn't a literal six days. You just move the question from one thing to the other. Let's say it was stretched out, why would hashem do that why not create it all pre-aged?
I prefer a literal 6 days. As for the science, I agree it's a good question. But it's not enough to disturb my faith.
Btw I think there's an age of the universe thread here someplace.
ETA to clarify my question. It seems like God is bound to certain rules if it's that way