Thank you all for your replies. I would love to keep her here with us and two weeks after the loss of her flock mate she seems to be doing quite well on her own, still with a very hearty appetite, busy digging in the garden and dust bathing etc. She follows us everywhere and I feel like she would probably be fine here alone with us but the problem is that we travel for work quite often and she would be completely alone sometimes for a week or more at a time with just someone looking in on her to make sure her food and water is ok which I think probably changes things as far as keeping her alone? I would worry myself sick every time I had to go away. I did have a friend offer for me to take her to her house whenever I go away but as I understand it, chickens don't like having their routine changed that dramatically which would happen quite often.
I had a couple of offers from nice people willing to take her but their coop/yard setup was far from ideal and I wasn't happy with leaving her with them but I drove past a property just a couple of minutes from where I live with a beautiful large free-range setup and a gorgeous painted barn style coop so i left a note and they replied and said that they have 9 hens and a rooster and would love to give her a home. I don't want to give her up but I will take her to them on the weekend as I think being part of a stable flock is probably more important for her than my wanting to keep her here with me. If it doesn't work out and she is not accepted by the new flock I will bring her back home though. Does that sound to you experienced chicken keepers like the best thing to do for her?
Thank you again for all of your replies