First - with 6 park visits in that time, I would plan for shorter days in the parks that you are visiting twice. If there is evening entertainment, it can work well to do one rope drop day, leaving mid-to-late afternoon, then start later/stay later on the second visit to that park. With no FP+ reservations or hopping to worry about, you don’t even have to figure out which day will be which in advance. Or, just arrive when you want and leave when someone starts to show they have had enough. This works well for both older guests and younger ones!
Will you be heading into a park on your arrival day? If so, I would suggest a pattern of 2 park days, 1 day off, 2 park days, 1 day off, 2 parks, and depart on the 9th.
Make your park & meal reservations but keep in mind that you can probably change things around if necessary. It seems to be an extra challenging time to plan at the moment, with so many unknowns, doesn’t it? Most of all, stay flexible and remember that 4 great hours in MK (or any park) can be a much sweeter experience than 8 hrs that has left everyone everyone exhausted and cranky. Where you are and what you are doing is considerably less important than keeping all of you nourished, hydrated, sun-protected, safe, healthy, and happy.
It’s all good when you are having fun as a family, and crawl into bed at night still smiling... and dreaming of more magic to come!