Just keep on with the medications your vet has prescribed. The drugs you're giving her have very different actions, and there's no problem with mixing them. The Baytril is to control any infection, the Metacam is for pain, and the acidophilus is to replenish the good bacteria in her digestive tract.
You need a smaller area for her to recuperate in so she won't pull the incision. An area about 1x2 feet is about right. As she gets better, you can gradually increase its size.
The other thing you need to do is keep her cage VERY clean while she's recuperating. You don't want her to get a bacterial infection in the incision -- that would be really hard on her.
When she first comes home, be prepared to offer her food every hour or so for the first 10-12 hours. She may be groggy from the anesthetic, so offer it to her by hand. Put her by a water bottle and pile food and hay around her so she doesn't have to move much to get to it. After she's eating on her own, you won't have to feed her so often.