Your number One issue will be getting him to eat, he can never be allowed to go without food. Don't let anyone touch him or play with him for at least 6 more weeks. Don't take him outside until he has all of his shots. It's a huge responsibility so do as the breeders on here advise. I know Royal Canin makes a special food for the newborns, it gets soft when you add water.
I hope you don't care about sleeping
Good luck!