Oh boy, where the heck do I start with this one??
First and foremost, this dog has GOT to go to the vet. Has it EVER been to a vet? If not, I would not breed this dog. The dog could have any number of health problems that could cause complications with pregnancy and the health of the pups. Also, what is the purpose behind the breeding? Is the bitch a purebred with papers? If your friend has no money, how is he going to pay for stud fees? Dogs with no papers aren’t going to get your friend any money. The puppies are going to need vet care as well. Any breeder worth his salt will have the pups taken to the vet for shots, physicals, fecals, and dewormings at LEAST twice before trying to sell the pups. There are pet lemon laws protecting people who buy sick or otherwise undesireable pets, so your friend can get into a lot of trouble trying to pass off “substandard” animals.
To be blunt about it, if your friend can’t afford to take the one dog he has to the vet, then he has no business trying to breed her. Proper breeding is time consuming and expensive. What I would adivse at this point is to take that time and money and put it into taking care of the bitch, and have her SPAYED.