I'm a bit late to the conversation, but wanted to say that I did give Pookie the turkey and chicken RadCat. He liked it. I did not feed the lamb -- he developed an intolerance to the Nature's Variety Instinct lamb, so I didn't want to try raw lamb.
I was able to get the RadCat from my specialty pet food store. They would order it for me. So it's possible that the store you're looking at can order it for you.
I don't remember what I paid, but I was getting the 16 oz tubs. Raw was Pookie's bedtime snack, so he didn't get it at every meal, and I also rotated with other raw.