Just wanted to add that the waist is shaped by changing the needle sizes, so if you wish to have no shaping at the waist, just stay with the same needle. Happy knitting!
The approximate yardage estimate with Venezia Worsted and with the gauge given only:
550, 650, 750, 850, 930, 1030, 1170, 1210, 1380 yds
If you change the yarn and the gauge these numbers will change. This is just an estimate.