Call a local rancher and ask when the next kill is, and if they can save X for you from the animal. I regularly get suet and heart and liver this way. I've never asked for the head - I wonder if I can get it? Perhaps without the brain if they are worried about that.
Steak, eggs, potatoes - fruits, nuts, berries and forage. Coconut milk and potent herbs and spices. Tea instead of coffee now and teeny amounts of kelp daily. Let's see how this does! Not really had dairy much, and gut seems better for it.