Shredded Chicken Noodles

80g dried cuttlefish100g dried anchovies100g dried shiitake1kg chicken backbone1kg fish bones300g prawn heads and shells40g acacia bark3 star anise2 Chinese black cardamom50g old ginger, skinned and sliced2 whole garlic bulbs80g rock sugar1.6kg whole chicken5 tablespoons black rice vinegar4 tablespoons light soya sauce2 tablespoons dark soya sauceSalt, to taste80g shallots, sliced500g fresh egg noodles150g bean sprouts4 hard-boiled eggsSpring onions, sliced thinlyChinese celery, chopped finelyRed chillies, sliced thinly