If you can wait a while, she is working on a second edition that is supposed to have additional material.
I have made two kilts from using the book. If I've learned anything from making my own, its that quality, hand-stitched kilts are worth every penny you pay for them. You will also learn that even if you decide not to make your own, you've gained valuable knowledge of kilt construction. Then you will know what to look for in a well built kilt.