Dirty Rice with Shrimp

Name: Dirty Rice with Shrimp
Ingredients: 1 1/2 cups long-grain white rice; 2 1/2 cups chicken or seafood stock , divided; 1 cup water; 2 tablespoons vegetable oil , divided; 1/2 pound smoked sausage or andouille sausage links , cut into 1/4-inch slices; 1 pound bulk spicy pork sausage; 1 medium yellow onion , diced; 1 green bell pepper , seeded and roughly chopped; 3 celery ribs , roughly chopped; 4 cloves garlic , minced; 1 scotch bonnet pepper , seeded and chopped (optional); 1 tablespoon Cajun or Creole seasoning blend (see recipe note); 1 teaspoon dried thyme; Salt , to taste; 12 to 15 jumbo shrimp (about 8 ounces ), peeled and deveined; Green onion or fresh parsley, chopped, for garnish