Steeplechase in back of Walmart is a good location and it's not expensive when you consider what you get for the money. You get everything except telephone, that's extra. There's no lease/contract. So if you don't like it you can move.
I'm not sure about recent prices but you might still be able to get something for under $2,000 per month. When you figure out all that it includes, like 3 meals per day, it's not bad at all. Rooms get cleaned and sheets changed once per week. Mail gets delivered to boxes inside. Transportation is included for shopping at nearby stores or for doctor appointments.
There's a small workout room, a big swimming pool etc.. Library on wheels shows up on certain scheduled days. Or when the library addition is completed, they most likely will take you there.
The average age of residents is about 78 so your mother will get to rub elbows with lots of youngsters.