If you're considering the raw route, you can always by large cuts of meat and grind it at home yourself (much cheaper, leaner, and less costly). Add 5-10% organs, and instead of bones, you can add bone meal powder (available at Tau in Brossard for about 11$ bottle) or you can add 1/2 tsp of crushed eggshell per pound of meat. It would take you about an hour to prepare a month's worth of meals for the little gal. At 20lbs, she would likely need less than 1/2lb of meat per day.
If you're interested in home cooking...I have a book with some recipes that might interest you.
"Education is a progressive discovery of our own ignorance." -Will Durant