To make this 'Hack' I made the following adjustments to the pattern.
Front pattern piece - cut at the lengthen/shorten line, add 1" to the fold edge and draw a straight line down from the armpit to the bottom. Cut 2 mirror images not on the fold.
Back pattern piece - cut along the lengthen shorten line, draw the same line from the armpit, straight down to the hem.
The sleeves are unaltered and simply cut on the elbow length line.
Neckband - Keep the length the same, sew the short ends closed with a 1/4" seam allowance then attached evenly along the neckline.
Construction - Sew the bodice front, back and sleeves as per the pattern. Fold and sew the centre front seams with a 1" seam allowance. Sew the short ends of the neck binding closed with a 1/4" seam allowance then attach evenly along the neckline. To make the bottom cuff, measure the bottom hem and cutting that length by 6", sewing the short ends closed and attaching evenly all the way around the bottom.