YEAH! 4 more days. You're so lucky. We were at CSR in October.
We were in Casita 4 on the 2nd floor. We never heard noise from above so I really don't think what story you're on will make a difference. When we stayed in Cabana 9B two years ago we were also on the 2nd floor and using the elevator wasn't a problem -- DH has an ECV so no stairs for him.
Have a great trip!