Is there housing that matches my mother's independent needs?

My mother had a stroke in October of 2009. She is 60 years old. She was living on her own in a camper by the sea year round so that she could go fishing every day if she wanted. She really loved her life, and enjoyed that we came to visit about every other month (read-- she likes her alone time lol).

Now, she is in a nursing home. She is depressed and extremely angry. She lived for about a month with my sister, but after she became angry out of the blue one day, she refused to let my sister even change her soiled undergarments. My sister had no choice but to place her back in the nursing home/rehab place.

I moved her to a facility near me at her request. She will not speak to my sister at all, she says that my sister is stealing from her and she hates her and will not ever talk to her again. She has convinced herself that she is going to be leaving the nursing home for good in 3 months time.

Her right side barely functions, she can move her lower leg slightly, but not much else. She is incontinent, and her right hand has mostly atrophied. She told me I should just drop her off at her camper and she would be fine. Obviously, I cannot just drop her there. I would take her home with me, but I live in a 2nd floor apartment with only stairs. I could never get her up here, much less back out again.

She is a very independent person, and I want to know if there is some other option for her. Are there maybe group homes for elderly where she could be with just a few people? She only really needs help with toileting, soiled undergarments, and getting in and out of bed. Not anything a nurse's aide couldn't handle. She doesn't really need skilled nurses I don't think. If not the group home, what exactly would be required for her to live in an assisted living facility? She has both Medicaid and Medicare, Medicaid after the stroke, and Medicare because she had memory issues prior to the stroke that kept her from doing basic things like getting the faucet to turn on (she would turn it backwards). She actually forgot one of her granddaughters at a car dealership and had to go back for her 20 minutes later when I called and asked where she was.

She is not a very social person, and absolutely hates the nursing home. I have been looking into government housing where she can have an aide come by for 8 hours a day. If I could arrange this, with me taking care of her on the 2 days a week that they don't come, would this be considered neglect since she would be alone for many hours each day? I just don't know what to do to help her, and I know she won't live out the year if she stays in that place.

She has medical training, and knows of several ways to harm herself even with the limited supplies available there. I really believe that if she doesn't leave soon, she could get depressed enough to take her own life. She has been prescribed two different anti-depressants, but she refuses to take any medication except her blood pressure pills and a stool softener. Please help me, any suggestions and ideas would be greatly appreciated!