Just a question: do you have a back up plan for any of this? In all seriousness, what will you do if your plan starts to tank? DLR really isn't a place where militant planning works all that well (that works better at WDW). For the most enjoyable visits, we tell people to do their research and make their plans (you've certainly done that!), have a back up plan, then get ready to drop it all if needed and let the magic happen. Make a list of the top 3 priorities for your day (one for each person) and make sure to get those done. Then have a list of the second 3 ("would like to do") priorities -- try to do those next. The last 3 things are the "if we do these, great -- but if we don't, that's fine" list. Anything beyond that is gravy. Otherwise, if your list starts to go south and you don't get to do what you want, and your family is tired and cranky from being shuttled around all day on a tight schedule, you may not have such a magical day. Just some food for thought.
This is good advice.
Also, the whole point is to have an awesome day! So, let's say for example you're in Fantasyland and see the Tea Party is walk on - scrap the plan and hop on! It's a ride your whole family can enjoy together. Also, you might check the App and see that Buzz Lightyear has a really close return time. Again, if that's the case have the flexibility to scrap the plan and hop in.
I understand the desire to want to experience everything and tick everything off your list. But I think in trying to do that, you run the risk of stressing yourself out too much. So, go with the flow.