Hello, Chez Mac -
I suppose you have not thought of contacting Debbie Bliss Ltd., the company which manufactures the wool, to find out if someone there can refer you to the right knitting pattern book for the purse project you seek. I suspect the company keeps track of knitting patterns which recommend Debbie Bliss Wool.
This is the link to the Debbie Bliss Ltd. home page:
This is the link to the Debbie Bliss Ltd. Contact Us page:
On that page you will find an email address you can use to send an email asking about the knitting pattern you seek.
By the way, your question landed in the Fixya.com category for Sewing Machines and not the category for Crafts & Hobbies.