Final update on the jack. She has settled into her new home quite nicely. I got a video of her, and she's no longer hiding in her cave, she's eating freely, and her and her now not so little friend have a 3rd roommate that they hang out with. I'm super thrilled to inform everyone that she's doing 1000 times better in her new home. Her tail (which I was convinced wasn't going to grow back) has almost fully returned and she's out begging for food. I'm so happy to see her doing so much better and I'm extremely happy with the new home she got. I do miss her, but I don't regret the choice I made.
Just thought I'd let everyone who helped me with this journey know that your efforts weren't pointless and you guys saved a beautiful lady and helped give her the best possible outcome. I'm sure if she understood what was going on, she'd be as greatful as I am.