Question 1) 7-10 does to show sex but sometimes up to 2 weeks.
Question 2) sex will show by the calyxs either beautiful white pistils or little balls (male)
Question 3) the plant for the first 2 weeks will go through a stretch and can grow 1 to 2 inches a day.
Question 4) hang dry your manicured buds in a dark,cool, low humidity room for 7 to 10 days and you should be fine!
Good luck!