I need help to give this kitten a fighting chance. :<?

I found a kitten on my porch yesterday in horrible condition. It was pouring rain and the mother never came back for her. So I brought her inside.
I estimate that she’s almost 8 weeks old because almost all of her baby teeth are in, and he can eat dry food. Although this is my fist kitten.

She was born in the wild and was homeless, so I know she is not had any vaccinations. I am almost positive she has sarcoptic mange. She has oxidized blood on her face, balding patches, and the skin on her tail is so crusted over it has split in several locations. My husband set her on my tummy last night and now I have little itchy bumps there, leading me to think it’s sarcoptic.

I want to give this kitten a chance, I figure since I don’t have a cat I can take care of her.
I have rather low income at the moment however. Is there a low income vet? And what is the averarage cost of vaccinations and mange treatment? I want to make sure I have the money for treatment when I walk in.

Thank you!
I live in Tampa, Florida. Near riverview.

For a home remedy, give her a bath in the bathroom basin. Barely warm water, baby shampoo or other mild shampoo.. Spoon the water on to get her used to it before soaping up and dunking to rinse. You will have to hold her with one hand and do all the work with the other.
The shampoo will kill some insects on her. Any fleas will float up when you push her underwater (except the mouth and nose). Scabs will soften up or come off.
When she is rinsed, dry her thoroughly with a towel. Some people say use a hairdryer, but most cats hate the sound of it.
Get worming tablets from a pet shop or supermarket.There are easy-to-adminster chewable ones. This will get rid of any worms, which can also be associated with fleas.
Get some Aloe Vera cream or jelly, also from the supermarket. The kind sold to go on sunburn would do. Put this on the damaged spots to soothe the skin.
If she does have mange, she would be scratching and chewing at the affected areas just about all the time. If washing and creams don’t stop her scratching, then you do need to go to the vet for better treatment. If you think you’ve caught it, go to the doctor for a cream for yourself and use it on the cat as well.(but don’t do this with tablets, as you can’t work out a safe dosage).
Feed her small meals 4 times a day, soft food (tinned is ok, fresh is better, leftover cooked meat ok too), but leave out some dry food to nibble in between. Give her milk (I use it diluted with about 30% water) as it is very nutritious. If her stools don’t go very soft from it, she can handle it (some cats can’t).
Until you clear her of having anything infectious, give her her own towel and bedding. Sit her on the towel on your lap or on your couch. If she likes you, let her have a worn Tshirt that smells of you, as part of her bed.
Around 14 weeks is usual for the first shots. That or the repeat visit would be suitable times for neutering. Cat protection societies sometimes do discount spaying, but I’m not sure about other veterinary work.

Find out  more about Sarcoptic Mange Symptoms & Treatment, here.