You will need

Cardigan
2/3 (22in Chest) - 2 Balls
4/5 (24in Chest) - 2 Balls
6/7 (26in Chest) - 2 Balls
8/9 (28in Chest) - 2 Balls
10/11 (30in Chest) - 2 Balls
12/13 (32in Chest) - 3 Balls

Waistcoat
2/3 (22in Chest) - 1 Ball
4/5 (24in Chest) - 1 Ball
6/7 (26in Chest) - 2 Balls
8/9 (28in Chest) - 2 Balls
10/11 (30in Chest) - 2 Balls
12/13 (32in Chest) - 2 Balls

3.25mm Knitting Needles
Stitch Holders
Cable Needle
4 (4 : 4 : 5 : 5 : 5) Buttons