I finished it!
I learned about steeks as I went. I picked up and knitted stitches along the front cut edges:
knit on them...
...till they were the right length.
Then, I tacked them down on the wrong side, affixing them to the stitch which I picked up. This makes a casing that the raw ends live in SO THEY CAN NEVER UNRAVEL. I hope they were listening.
Here is the finished knitted binding on the front:
Chris said it looked just like the picture in the book! Now, I must decide whether to do the hook closures, such are in the book, or whether to knit an i-cord frog and do the regular buttons.