You will need;

Sweater

32" Chest - 8 Balls
34" Chest - 9 Balls
36" Chest - 10 Balls
38" Chest - 11 Balls
40" Chest - 12 Balls
42" Chest - 12 Balls
44" Chest - 13 Balls

3.25mm Needles
4mm Needles
Cable Needle and Stitch Holders

Tunic

32" Chest - 6 Balls
34" Chest - 7 Balls
36" Chest - 8 Balls
38" Chest - 8 Balls
40" Chest - 9 Balls
42" Chest - 10 Balls
44" Chest - 10 Balls 

3.25mm Needles
4mm Needles
Cable Needle and Stitch Holders