Ok, so it looks like I am finally winning the battle!
Roxy has been doing well so far on the following foods: chicken, turkey, sweet potatoes, carrots, and lentils. She is also doing well on the Platinum Performance vit/min/omega supplement as well as a 1000 mg Fish Oil capsule. We are still working on creating a good spectrum of tolerable foods, but we are only adding one new food per week so if there is a reaction we will know what is causing it. I've got an old stove top steamer I'm using right now. Roxy is eating about 24 ounces per day (1.5 lbs) which is 2% of her body weight. Roxy gets 50% meat & bone and 50% green lentils/sweet potatoes/veggie/fruit.
Here is tonight's dinner (chicken, green lentils, sweet potatoes):