Soak the bean thread noodles in about 2 cups of boiling water until they are tender.
Combine the mushrooms, carrot, shallots, green onions, egg, fish sauce, garlic, sugar, white pepper, crabmeat, and pork with the noodles in a mixing bowl. Cook a test batch and adjust seasoning as needed.
Soak each sheet of rice paper individually in water, and place