I was able to take this project along on my travels and knit up the foot and the gusset. When I got home, I researched the heel and after knitting and re-knitting, I finally settled on a regular gusset heel.
I had to do some math for the 60 stitch count and also added a padded heel with a slip stitch in between knit stitches.
Here are the heels done.
I see that there is some color pooling in the gusset increase but it settled back to the striping when I started the heel.
Now to finish knitting the leg and binding off and the socks will be ready for the mail.