First off, my thoughts and prayers are with you. I would call Disney, explain what is happening, tell them time is of the essence and ask what is the best deal they can offer you as soon as possible. Don't pull punches, don't waste time, just do it. I know the purposes of this board are to be budget conscious but ask for help, see what you get, and go. You will have no regrets. IF you fuss around, bargain shop, she gets worse/can't go, you'll forever be berating yourselves for worrying about the money part of it when you should have been enjoying the last days/weeks/months of her life. Ask everyone to pitch in and just do it.
If you somehow get a snarky CM, call back and talk to someone nicer.
Best of luck to you.
I totally second this. If you do not get a totally understanding and accomodating CM call back until you do. Disney is magical and they want to make these kinds of situations happen for people! There are some great deals out this year to stay on property and I would think being close to everything would be a real convienience to you in this case!
jackie