Meringue base can be made 1 day ahead. Store in an airtight container until needed. Curd can be made up to 3 days ahead. Cover and store in fridge until needed. Stir before using. Almonds can be toasted a week ahead. When cold, store in an airtight container at room temperature until needed. Assemble the pavlova about 1 hour ahead of serving. Leftovers can be stored in fridge, loosely covered with plastic wrap, for up to 1 day.