Given the large number of stitches, you may wish to use a circular needle for the body.

SIZE
To fit bust
81-86, (91-97 102-107 112-117 122-127) cm
32-34, (36-38, 40-42, 44-46, 48-50) inches
Actual measurement of garment, at lower edge
97 (106, 117, 126, 137) cm
38 (41½, 46, 49½, 54) in
Back at waist: 19 (21, 23, 25, 27)“
48.5 (53, 58.5, 63, 68.5) cm

Yarn used:
Rowan Creative Linen
Shade 631 Raspberry 4 (4, 5, 5, 6) skeins