I have added a couple of videos to YouTube to help with the process. For the Cast on: https://www.youtube.com/watch?v=WUukBb9IAP4

For the heel and gusset:
https://www.youtube.com/watch?v=zuYjOW_DVPk

I wrote this pattern to teach two at a time socks on two circular needles. My motivation was not a hatred of dpns (which I love) but a sever case of Second Sock Syndrome!

The pattern is written with step by step instructions that should make it pretty clear. Feel free to reach out through Ravelry Messages if I can help.

Specifically, you need two 16” circular needles, one wood, and one metal, in the size necessary to get gauge. I used a US 7.

You yarn needs to be split into two relatively equal balls. I used a kitchen scale to weigh the balls. Unless you have ginormous feet you will have plenty of yarn if you have at least 200 yards.