Peruvian Chupe De Camarones (Peruvian Shrimp Chowder)

INGREDIENTS

• 2 lbs shrimp, with shells and heads
• 4 cups water (more if necessary)
• 2 tablespoons olive oil
• 1/2 small red onion, finely chopped
• 1 garlic clove, finely chopped
• 1 tablespoon aji panca chili paste (can substitute tomato paste if necessary)
• 1 teaspoon aji amarillo chili paste
• 1 cup peas, either fresh or frozen
• 1/4 cup long-grain white rice
• 1 -2 ear of corn, cut into 1 1/2-inch chunks
• 1 lb russet potato, peeled and cut into 1 1/2-inch chunks
• 1 teaspoon salt (to taste)
• 1/4-1/2 cup queso fresco, cut into 1/2-inch dice
• 1 cup evaporated milk
• 1 tablespoon fresh oregano, chopped
• 3 eggs