Adopting a young Corgi- community thoughts?

I'm adopting a 3 year old corgi this week and I'd love to have the community's thoughts. She's had a bit of a rough start- she was brought to a vet clinic for an emergency c-section that the previous owner put off too long. When the owner found out all the pups had died, he asked the vet to euthanize her, as they were only interested in the puppies. He called a contact at a rescue, and they paid for her recovery and put her into foster.

We're picking her up this week, so aside from the usual- making sure she has good food, a safe place to retreat to (kennel), and is a loved member of the family- does anyone have any tips? Specifically for acclimating a new dog, and what your feed to improve a hair coat and add weight. She's fairly underweight and has a thin/rough coat; I feed my lab a salmon-sweet potato feed, which should be good for her, but does anyone have any supplements or feeds they swear by?