Unfortunately, the author says on http://stanleyschmidt.com/FredGauss/21%20Questions/3050%20E-book,%20CDs.html
“It’s my prejudice that Fred wouldn’t do as well as an e-book.”
Emailing the author is a great idea, though. Maybe if you explain your reasons and that you would (I assume) print a hard copy yourself, that would help. You could tell him that you know at least one other international homeschooler (we live in China) who would love to have an e-book, too. =) If you think it will help, I’ll write him, too.
Would you mind posting here what you find out? TIA!