That sounds awesome.I
I remembered
Fuchsia Dunlop recipe from every grain of rice
https://www.washingtonpost.com/recipes/smacked-cucumber-garlicky-sauce-suan-ni-pai-huan-gua/
Tell me about the Chinkiang vinegar?
That's the bit I'd have to substitute for something gluten free and often a combo of ingredients (rather than a straight sub) can achieve the same thing.
What does it taste similar to?