You will need:
5mm hook
6mm hook
Stitch Markers (your preference)
Yarn of choice in weight 4 - approximately 1,200 yards

Abbreviations:
CH - Chain
SC - SIngle Crochet
HDC - Half Double Crochet
DC - Double Crochet
FO - Fasten Off
DEC - Decrease
INC - Increase
BLO - Back Loop Only
* * - Repeat Between the Asterisks

Notes:

No chains count as a stitch on any row, to include any DC rows.
The size of the final item can be adjusted by adding rows after row 39, ensuring that you stop near the spine.