Your shopping list: meat, poultry, fish, eggs, vegetables, healthy fats. Don't let the perfect be the enemy of the good. Go for 100% no grains (eliminate poisons). Buy ground beef, organ meats, cheap cuts like short ribs. Conventionally raised proteins are still way better than any kind of grain. You're doing great! Keep it up, and don't stress the details now. If you eliminate poisons (grains, legumes, sugar) you are 90% there. You can fine-tune later.