The Plan's been in place...
I'm afraid to say (to answer your first question).
To your second question ("Would Bush have gotten away with starting a war with Iraq if the Sept. 11th attacks had never happened? "), I doubt it too. But would he have tried? Almost certainly.
I can't point to a specific time/place when this all started, but while Republicans in the 90s were busying themselves with laying down the smoke screen with their frivolous impeachment of Clinton, the Hegemonists were quitely hatching their plans.
Goes to show, in times of prosperity, you can't let your guard down one bit.