Called the hotel to extend the reservation from 4-8 to 31-9, to account for when our flight actually left, and arriving earlier to hang out with other friends. The improbable ($149/night) suite with full kitchen, right across from the entrance to the park, was available for the rest of the nights (it really is off-season. Really off season) and altho the rate would now be much higher, extending the reservation gets us the rate from months ago. The guy on the phone went, wow, you got a great rate. Usually that'd be $199 by now. Heh. Hopefully, it is not a dive.
And a car for the duration is reserved for under $200.
I think we'll be buying annual passports at the gate, since they are not discounted online. Not counting food, I think the bill for the whole thing is still running <$3000. This just seems implausible.