lilbumbleybees - I am so happy you decided to do raw! There are a few other threads right now discussing this very same issue and the conclusion everyone seems to be coming to is a raw diet.
I can not say enough good things about raw. Prepackaged raw meat should be purifying enough to start the detoxification process - don't be alarmed if she looks worse before she gets better. Rather then suppressing her symptoms, she will be expelling the toxins that are at the root of the symptoms, therefore most dogs go through a period of detoxification.
The oils you mentioned are great - though I think the salmon oil would be enough - just be careful of too much, remember how tiny our Yorkies are!!