So I'm in the market for starting an Oil palette based of James Gurneys beginners palette. Colors are:

Titanium White
Cadmium Yellow Light
Pyrrole Red
Yellow Ochre
Venetian Red
Burnt Sienna
Quinacridone Rose
Ultramarine Blue
Pthalo Cyan

I am looking for the highest quality oil out there. I cant find most of these colors at AC Moore or my local downtown Art Store that is overpriced, and mediocre compared to major city Art Stores.

Are any of these colors practically identical to more common colors?

I was wondering what sites would be best to shop on, for bulk, prices, and deals. Any suggestions?