The E7 will definitely work for this song. For this tutorial, I taught the guitar part as it is heard on the original recording, and based on that, the guitar doesn't actually use that E7 (you hear the E7 sound in the organ part).
But by all means, going from E to E7 in the final bar of the progression does work well and sound good.
Keep pickin'!
Mike
Keep rockin!
Mike Olekshy
GT Guitar Coach