Tips on adopting an unsocialized, half-feral dog?

I am adopting a dog from Animal Services who was called in by the public as a wounded fox or coyote. Some locals identified the animal as a homeless man's pet, and stated the man hadn't been seen in days. Animal Services determined the animal to be a female dog, possibly a Chow/Pomeranian mix, with an injured front paw. When I went down to the shelter to see her, she was laying in the outside portion of her kennel. I called out to her and she slowly came to me. She is skin and bones but under that matted fur lies a very beautiful animal. She has enlarged teats which leads me to believe she has had one or more litters. They estimate her to be about a year and six months old. When I was allowed to take her to the "play area" about as big as a bathroom stall, she was so busy sniffing everything that she only came over to me once the staff told me my "ten minutes were up" and I stood to open the gate (I had been sitting down because I wanted her to come to me on her own time). She sniffed me and licked my hand a few times. On the way back to her kennel I walked her close to the other dog kennels and she did not initiate any aggressive behavior but she had no problem barking/growling back at the dogs who barked/growled at her in an aggressive way. She showed great interest in some puppies and was reluctant to leave the area where they were. She did not want to go back into her kennel (understandably). She also had not touched her food. This took place Friday; she will be spayed next week and after that they'll call me to go pick her up. I am looking for tips and any helpful information anyone might have that will help me transition this unsocialized, neglected, half-feral animal into my home. One thing I have heard from some of the volunteers in the rescue organization I am affiliated with is that having another dog helps in this sort of situation (gained from experience in re-homing dogs used in puppy mill breeding). I actually have a rescue Chow/Cur mix (neutered) male who has never met another animal he hasn't liked. Based on the female's reaction to the dogs in the kennel, I have a good feeling that they will get along. I obviously couldn't bring my dog to meet her, as the risk of transferring diseases is not worth it. Once I bring her home I will let her get acclimated with my home and my dog, and I will not force contact with her; I'd rather her come to me when she's ready. I'm afraid she won't want to eat anything, too, though she just may not be eating in the kennel because it's a stressful place and she's likely disoriented. Once I gain her trust, I'd like to start the socialization process but I understand it may be slow-going. Again, any helpful advice or tips on how to do this right would be much appreciated. I have had a lot of positive comments from my fellow volunteers but I'm hoping that someone who has gone through a similar experience might read this and have something to contribute. And even if you haven't gone through something similar, share your thoughts anyways! Thanks for reading! =)