the Humane Society has a low cost vaccination clinic every few months. You may want to check with them for some options on vaccinations. They may also be able to give you some advice on inexpensive dog food that does not have corn. As far as nail clipping, there is some sort of device out there that files their nails down instead of clipping them. I'm sure a pet store would have it. I can't remember what it's called. Will the dogs sleep in their crates? If so, you could put some old towels/blankets in there. Good luck! I hope you get to keep them. I was resistant to getting another dog, but I'm glad I gave in. Our little dog has been a great addition to our family, and the kids love her. So do I!