Hey spottedfurkids,
You are completely ccrrect about cooked bones. I will have do disagree with a few of your comments. I don't feed ground anything unless someone gives it to me or I can get it so cheap that I just can't pass it up. It's just not nearly as good for your dogs as the same thing whole. Most ground stuff you buy has too much bone in it and no ground stuff gives helps your dogs dental health. There is no good reason to feed ground. You are not doing your dogs a favor by feeding them ground food.
I would be very careful with the femur bones as I know at least a half dozen people whose dogs have broken, chipped or cracked their teeth on them.
As far as getting your RMBs wholesale, you will have tu buy in bulk. I have a small independent grocery store near me who orders my stuff when I call him. I always order by the case on a Monday and pick up at his store the next Thursday. He marks up my stuff very little because he doesn't have to do anything to it. He doesn't have to package it or put it on the shelves or store it any amount of time.
I suggest going to small independent grocery stores and talk to the meat manager. Explain to him that you want stuff in whole cases and he can add your order to his regular order. Tell him you will be buying aroun $100/month of stuff (you prolly won't order quite that much but it will impress him)

Let him know that this is not a one shot deal and that you will be buying the meat often. Go in person to visit. It's too easy to say "no" on the telephone. I have never had any luck on the phone but very good luck with different stores when I visit in person.
Get to know this guy real good. I know my meat guy's wife, son, and daughter. I have met them all and they all know me. I chat with him about his family and his fishing trips. I have a very good relationship with him and he treats me very good.
If you have friends who are hunters, you have another possible source of great meats. I get a lot of free venison and fish. I get so much free fish that I have been turning it down lately. I would buy still another freezer before I would turn down free venison.
Oh, one more thing. Your dogs need liver. The Dal owners that I know who feed raw don't have a problem feeding a limited amount to their dogs. I only feed my Great Danes about 1/2 lb a week of liver. That shouldn't hurt your Dals.