Language Processing Textbook Information

Currently, the following two options seem to be reasonable for purchaing the textbook for the language processing course:
Title: Engineering a Compiler: International Student Edition

Keith Cooper, Rice University, Houston, Texas
Linda Torczon, Rice University, Houston, Texas
ISBN:   9781558606999

Option 1

Buy from the publisher at $64.95. We will get either 5% (10 to 19 copies) or 10% (20 or more copies) discount if we order together. Please note that we will also have to pay shipping cost which is about 10% of the book price.

Option 2

Buy from amazon japan. Currently, their price is 8253 Yen including tax and shipping.

To place an order for the option 1, I have to collect the money from each student. Please let me hear your choice.