Hello, and welcome to BYC. i think i saw your post on craigslist asking for help in identifying your chicken. Are these the pictures of your chicken?
If so, it's hard to tell by the pictures, but looks like an American Game Bantam hen. Here is a picture from Feathersite of one. Does she look like this?
i live in Fair Oaks and if you are within driving distance, i can help you with a waterer and feeder, i have lots of spares. i can also give you a rabbit hutch to use as a coop until you can make something larger. But a rabbit hutch will work in a pinch for one or two bantams. Most of my spare hutches have 1/2" hardware cloth covering the regular wire, which make them more secure. i have used them for broodies raising babies. i use pine shavings on the floor and in the nest boxes for my chickens. It's a lot better to use than straw, which can harbor mites.
You will want to get lay crumbles for her. Not sure where you are located exactly, but there are several good feed stores in our area. Crushed oyster shell is also good to offer free choice. If you live in the City of Sacramento, they are now allowing residents to have up to three chickens, so you're safe there. It is good for chickens to have a buddy, so i would take wolftracks up on her offer of a pullet. Or you might be able to find one closer. i do see chickens advertised all the time on craigslist.
i use dog kennels as runs or pens, then put galvanized roofing panels over the top for protection from the rain and predators. i'm sorry i don't have any spares of those, but i see them all the time on craigslist. i have also built my own panels out of pine fir strips and hardware cloth.
Very kind of you to save this little hen. i think chickens are such a delight. Mine make me smile every day. i'll pm you my phone number. Give me a call and we can coordinate getting a hutch and a feeder and waterer to you.