I would book it with enough time that you could cancel if it didn't work out. Then call the hotel guest star wars phone number and get your reservation window that you need.I have an AP that is blocked on Friday/Sat/Sundays.
If I were to pull the trigger on a resort hotel reservation for a Thursday night, what do you suppose the chances are that I would get a reservation for a Thursday, when I COULD go, as opposed to the following day Friday, when I cannot go?