580- ticket
200- spend
100- genie plus
450- food at Disney and on the road
I hope I am over budgeting, but I doubt it.
A few thoughts....
The cost of souvenirs at WDW is now pretty insane. Just, I'd give everyone a heads-up. Their $200 allowance might not buy much.
G+ might cost more, or might cost less, now that variable pricing is here. Odds are good though that there will be more changes to G+ before your trip. On the other hand, if you are not hopping you might not need it every day. By that, I mean we've used it, but now if I was just going to AK or Epcot, I would not buy it for either of those two parks, at least not we were planning to arrive for Early Entry. On the other hand, maybe possibly, I'd buy ILL for FoP instead. We usually do fine not buying any of other other ILL's, but you may feel otherwise.
We have also now - for ourselves- accepted a few compromises when it comes to WDW food. IMO, just as prices have skyrocketed, WDW food quality just is not what it once was either. We used to love Boma, on our most recent visit we splurged, and it was just not as good as it once was. We used to do a TS meal every day at WDW, plus QS breakfast and lunch. Every TS you are willing to swap for QS = a savings. Every QS you can swap for in-room snacks = a savings. Drinking water instead of soft drinks = a savings.
In the past year, we REALLY splurged, and did Cindy's Table, and the food was REALLY bad. Truly, the food at Satuli is better quality. WDW buffets are now $62.83 +tip per person (over age 9). That's both Crystal Palace and Boma's current price. Pecos Bills isn't phenomenal, but you can each get a platter/soft drink for about $17.50 there. So 4 people That's $251+tip vs. $70. Swapping one buffet for 1 QS should save over $200. Some of the newer QS have pretty good food.
Current WDW also favors getting up early/or staying late in the parks. In prior years, we didn't worry too much if we missed rope drop. These days, making Early Entry or staying late in HS = saving $22 per person over paying for Rise. In prior years, we didn't worry too much if breakfast took 90 minutes in the morning. These days, that early morning time really costs $$$.
If, you can- just one of your 4 days- live on something like granola bars for 4 hours instead of getting breakfast at the food court- you'll get to AK early AND save about $50.
Since you are driving, it also pays to pick up or pack a few groceries. Bonus for anything that is both shelf stable and healthy, because decent fruit/produce is now somewhat hard to find at WDW. Most of what they do have is often so-so quality. Fruits like tangerines, raisins, apples are great for WDW if you like any of those. Items like applesauce packets are also great.
We don't usually eat offsite mid-visit, but another way to save on food is swapping one on site meal for an offsite one. Another option is to do a mobile order from a WDW table service place, but bring it back to your hotel room to eat or find an outdoor table. (save on drinks.) On arrival night, we sometimes mobile order from CityWorks, and bring the food to our room to eat. Another inexpensive onsite option is Blaze pizza. Everyone gets to pick their own personal pizza toppings, and they are big enough we sometimes have a bit more than we can eat in one meal.
Last, look into picking up some discounted Disney gift cards before your trip. If you have a warehouse membership like Sam's Club or a Target credit card, you can save 4% to5% by buying Disney gift cards. If you participate in any grocery store gas rewards programs, sometimes they also offer bonus deals. The savings is indirect, but you can save a little off the cost of gas by buying (Disney) gift cards with bonus reward deals.