I would suggest considering setting up a 'hospital crate' in your home if you can. I use a big German Shepherd size wire crate for my sick cats as a 'hospital' I can put a cat box in the front, bedding in a box in the back for a cat to hide in. You can throw an old sheet over the whole crate to let the cat have privacy in their hospital space. I also use a 'shelf' in the crate for the cat to have an upper area to climb up to. I slide a board through the wire of the crate and set up one of the cat window perches using the board and the crate sides for supports. They also make 'cat condos' and www.petedge.com usually has them at a fairly reasonable price. The dog crates are cheaper though and can often be found at yard sales or in the newspaper for very little money.
Yes I'd do the mom and kittens at the same time and if you think you can find the kittens homes this might be a good time to separate them from mom.
Hope this helps you!
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