Authentic Chongqing Wanza Mian in London

I went to Chongqing recently and tried the best Chongqing Wanza Mian of my life (Huashi Peas Mixed Sauce Noodles on Amap). Ever since I have been looking for restaurants in London but no place has even come close (not spicy/numbing enough, wrong chickpea texture, no sesame paste etc.). Could anyone recommend?