Your theory makes a lot of sense. The only thing I would question is the video scenario. My opinion is that it was done ahead of time and was ready to go when the Benghazi fiasco occurred. Seems like I remember someone at the Embassy in Tripoli tweeted that the demonstrations there were caused by the video. This was right before the attack on Benghazi. And don’t forget the big ad that Hitlery and Bozo put out in Afghanistan (or was it Pakistan?) just a few days later denying any knowledge of or responsibility for the video. Remember: anytime either of them says anything in public, we can all be assured that the exact opposite is the truth. When they did that, I was pretty convinced that they had cooked up the whole video scheme themselves beforehand.
They may have just jumped on the video because of what happened in Egypt. They were flailing around looking for something to blame. Not saying the kidnap Stevens plot was false, only that it requires a whole bunch more tin foil then I have right now.
Could it also be that 'Nakoula' guy (video creater) is a CIA informant/operative who helped develop the video lie by overdubbing his video? What does he know? Jailed for a YEAR for a probation violation??? Yeah right.