I’m a sucker for free stuff so the only thing that would slow me down is her problems. Are you willing to spend money on her if she gets sick all of the sudden? How much are you willing to spend? Are you going to breed her if she gets to a good weight and doesn’t have many (hopefully if any more) health scares? As far as introducing her to the herd, maybe try putting her with your gentlest goat (I’m thinking Champ) and then let her out into the rest of the herd at the same time you let the nice companion and then maybe the companion will protect her a little bit.