No...Not in my opinion. You have a young family, hopping adds More time ( shuffling about ) and that’s less time relaxing and enjoying. I think ur going a perfect time of year too!
I’d Plan on park time with some rest/pool time , in the middle) back at ur resort IF ur staying on property.. which I’d suggest. ( if ur not staying on property, plan on down time ( like a monorail ride) or a time to re group by grabbing a snack and All sit n relax a bit)
Maybe....You can plan on one day at each park..and ur two xtra days... one to unwind and enjoy a full pool/relaxing resort time ( arcade/ice cream/playground) and the other to re visit fav park and perhaps see/do something you missed?
I think that I’d pick what you think will be a fav ride/attraction experience for each family member .. be sure to get that in at whatever park and just Enjoy the Amazing Family time you re about to experience making those memories to last a Lifetime. If the expectation is realistic ( you won’t see/do it all and you simply can’t in any one visit... you won’t be disappointed!)
I’d rather see you spend that money towards an Xtra Fun experience ( like Hoop Dee soo) which you ll All enjoy.. food, music, fun time.. take the boat from MK area over.. to see the show)
Whatever you decide, pixie dust ur way.. they grow up sooo fast!