Information on her website says the ruler and book are 34.99 with in class students receiving a 10% discount. I would maybe pay what the guild is charging for the class and don't go, thereby saving the $34.99.
I had to do that once, I paid the 25.00 for the class, but did not want to pay the extra for the "special ruler and pattern set". Especially after seeing what was involved, I knew I did not want to do it much less pay a fee for it. I just contacted the program chair and told her I could not attend but to keep my payment anyway since it was short notice. No problem! Much more careful now in what I sign up for lol.