Chicken Gumbo with Andouille Sausage

Name: Chicken Gumbo with Andouille Sausage
Ingredients: 1/3 pound bacon , diced; 2 to 3 pounds chicken thighs , skin on; Salt; 1 to 2 pounds andouille sausage; 1/2 cup peanut or other vegetable oil; 1 cup all-purpose flour; 2 green peppers , diced; 4 ribs celery , diced; 1 large onion , diced; 4 cloves garlic , minced; 2 tablespoons tomato paste; 4 cups chicken stock; 4 cups water; 3 tablespoons Cajun spice , plus more to taste (see homemade recipe below); 1/2 to 1 pound okra , sliced into discs; 3 green onions , chopped; 1/2 cup fresh parsley, chopped; 1 teaspoon black pepper; 1/2 to 1 teaspoon cayenne pepper; 1 teaspoon celery seed; 2 tablespoons sweet paprika; 1 tablespoon garlic powder; 1 tablespoon dried thyme; 1 tablespoon dried oregano