Amy, stop by ALL of your local feed stores, you're bound to find pre-made raw. Talk to managers and check the back room, where the freezer items are sometimes kept. I recommend Farmore or Primal. They're available everywhere in the West, and not nearly as expensive as others (like Natures Variety). Farmore has Beef, Buffalo & Lamb (along with Chicken) if you're worried about it agreeing with Nebo's tummy.

Pre-made is definitely a safe & simple way to make the switch to raw, you can begin formulating a diet on your own and adding RMB's when you feel comfortable. RMB's are ideal, though, because of the process of chewing the meat, fat, and bone. Good luck! I'm sure Nebo would be over-joyed =0)