First, you’re amazing for thinking this through and planning it out so well for your son! You are sure to have a great time!
Second, when I go to
Disneyland I rope drop and/or do EE a lot. It’s my favorite. My strategy, is to get there absurdly early so that I am first. Literally, first at the rope. This may be the way to do it with your son because while once you’re there behind you it’s crazy and a sea of people but looking forward, you’re looking into an empty park. As long as he keeps his focus forward he can maybe ignore what’s behind him. Then at rope drop you guys can go in your direction of choice and viola! enjoy all that you want to enjoy.
Here is what I mean. Here are two pictures from the last day I rope dropped in April. One is what I see ahead of me vs the other is what was behind me.