As I have cite the name of the ancient book in the previous post of mine.
<白鶴仙師祖傳真法> which you some how didnt see.
you can start with that.
since you are a Minghe guy, show my posts' writing to your contact in China I am sure they will be able to point you to the proper direction. it is just a common WC writting for Fujin WC practioner passed down by the ancestors. I would not go into details and long story here.
or even those who knows Dr. Yang, Jwing Ming. Show it to him and he will sure be able to help giving direction.
For me, discussing Fujian WC got to go to this root level.