Looks like it is a Pied Pearl Gray. It has a little bit of splay leg. Keep it off of slick surfaces. Even newspaper is too slick of a surface for it. Even a surface such as the select grip easy liners would be better for it. Anything that it can get a good grip on to help prevent its leg from sliding out away from it will be helpful.
I don't recommend having guinea keets on wood chips until they are at least two weeks old. They will try to eat the chips which they cannot digest them without having appropriate sized grit in their system. They can become plugged up and die.
It should be alright with the week old keets. It will try to crawl under them for warmth and security. I just had two week old keets in with four week old poults and they did fine together.
Good luck.