Bring a medium saucepan of water to boil. Boil rice vermicelli 3 to 5 minutes, or until al dente, and drain.
Fill a large bowl with warm water. Dip one wrapper into the hot water for 1 second to soften. Lay wrapper flat. In a row across the center, place 2 shrimp halves, a handful of vermicelli, basil, mint, cilantro and lettuce, leaving about 2 inches uncovered on each side. Fold uncovered sides inward, then tightly roll the wrapper, beginning at the end with the lettuce. Repeat with remaining ingredients.
In a small bowl, mix the fish sauce, water, lime juice, garlic, sugar and chili sauce.
In another small bowl, mix the hoisin sauce and peanuts.
Serve rolled spring rolls with the fish sauce and hoisin sauce mixtures.