if u already choose a date for elective c-sect, u just need to bring all the necessity to the hospital on the selected date, no matter how the position of the baby, or how many cm is ur dilation cos it's not coming out that way
Don't worry, gynae will usually tell you how they will proceed. As long as baby is not overdue then it is fine. If baby is overdue, gynae will induce labour..
Just go down on the selected date for your c-section.