You will have a very difficult time in obtaining the services of your local butcher in slaughtering and processing your beef for sale. Sanitation procedures, animal welfare, waste disposal; etc are many of the various concerns that will impede the services of your local butcher. Research your State and local regulations. If you cross State lines when selling your processed product, this will enter the Federal arena. My Father had part interest in a Custom Packing plant - aka slaughter house. We even had a Federal inspector on hand. I worked in all the aspects of the operation - from the kill floor, to the hide room, to the gut room, to the processing, and to the wrapping.