Tequila Lime Pulled Pork Sandwiches

Name: Tequila Lime Pulled Pork Sandwiches
Ingredients: ½ teaspoons Chili Powder; ½ teaspoons Smoked Paprika; ¼ teaspoons Cayenne Pepper; ¼ teaspoons Nutmeg; 1 pinch Salt; 1 pinch Freshly Cracked Black Pepper; 1 whole (about 8 Pounds) Pork Shoulder; 1 dash Olive Oil; 3 whole Limes, Zest And Juice; ½ cups Tequila; 2 cups Chicken Stock; ¼ cups Fresh Cilantro, Roughly Chopped; 1 whole Onion, Thinly Sliced; 10 whole Whole Grain Hamburger Buns; Avocado Slices, As Needed For Serving; Salsa, As Needed For Serving