My father in law purchased an attachment that went on his kitchen aid mixer and we used it as a grinder but don’t know where he bought it from. He bought rest from LEM. Like a cuber for cube steak and vacuum sealer for packaging and etc. More work but seems to taste better when we process it yourself. Especially if you are able to age it, we quarter up and store in a spare fridge for a week then processed it. Lots of work but cheaper.