Reduce the heat to medium (160°C/320°F). Return the cooked noodles and half of the vegetable-meat mixture to the wok. Gently fold everything together until the noodles are evenly coated with sauce (hanggang mabalutan ng sauce ang pancit). Transfer to a serving plate.
Start by bringing water to a boil and cook your fresh egg noodles until tender but still firm, about 3-4 minutes. Drain them and rinse with cold water to prevent sticking. Set aside.
Season sliced pork belly with salt. Heat your wok until very hot and add oil. Fry the pork belly until golden brown and crispy, about 5-7 minutes. Remove from the wok and set aside.
In the same wok, sauté minced garlic until fragrant, about 30 seconds. Add chopped onions and cook until they turn clear, about 2 minutes. Add sliced pork liver and stir-fry for one minute until just cooked through.
Add julienned carrots, French beans, and cabbage to the wok. Stir-fry for 2 minutes until the vegetables are crisp-tender. Remove everything from the wok and set aside.
Mix cornstarch with one cup of room temperature chicken stock until smooth. Pour the remaining four cups of chicken stock into the wok. Add hoisin sauce, oyster sauce, and soy sauce. Bring to a boil while stirring. Once boiling, slowly pour in the cornstarch mixture while stirring. Simmer until the sauce thickens enough to coat the back of a spoon, about 2-3 minutes. Season with fish sauce and black pepper to taste.
Lower the heat to medium. Return the noodles and half of the vegetable-meat mixture to the wok. Gently toss everything together until the noodles are evenly coated with sauce.
Transfer to a serving plate and top with the remaining vegetable-meat mixture. Add halved quail eggs and sprinkle generously with crushed chicharon. Serve hot with calamansi or lemon wedges on the side.
For best results, serve immediately while the chicharon is still crispy. Each person can squeeze calamansi over their portion and add extra chicharon as they like.