I will have much more accurate numbers when I can finally book things

I am waiting on the good old tax return before I put down my deposits and book flights. It should be here this week. Since this was an unplanned trip, dh has asked that it not go over $3500. Tight.. but I think it's doable for just the three of us. It would definitely be enough if we did free dining in September, but I don't want to take the kids out of school for a week. So.. all that being said.. this is what I am looking at so far..
3 Disney adults (kids are 17 and 10)
7 nights Beach Club deal...$1400 (if I can get a mod much cheaper than that when deals are released we will be switching to a mod)
Upgrade the 2 day tickets I have to 7 day base tickets...$435
Flights, I have enough points to make some of them free but prices are high. I have to estimate here but I am guessing around ..$800
This leaves $835 for food (the kids will have their own money for spending) which seems low but we could do it with counter service no problem. I think though I will have money to add to that. If a 25% off code comes out for room only I could switch to a mod and spend $1121 and then have $1100 for food and spending for the week which I am happier with.
No matter what I decide to do, the $3500 will work out to $145.83 per day, per person.