Sounds like a good plan, Rachel.
I just wanted to point out that since you now work at a vet's office, you will come across lot of pets needing new homes. Often when an owner must give up a pet, the vet is the first person they speak to. Also, people turn in injured animals and orphaned kittens to local vets. People die and their families turn pets into the vet for adoption, etc.
My sister managed vet office for many years and was always adopting pets that were turned in. She kept my mom in cats for many years!
I'm sure when and if you decide to add another dog, you won't have to look far!