Check with tourism in QuFu, Shandong Province.
Also, there are variations of the qianlong emperor's Man-Han Quan Xi banquet I believe available at Fang Shan in Beihai park. The whole one was done a few years back - it involves six meals for the whole gamut of courses.
Ah..... the elusive Kong Fu Yan. I never did managed to find it in Nanjing or anywhere else, but I highly recommend the "Dream Of Red Mansion" banquet presented by the Yangzhou State Guest House, about an hour's drive from Nanjing. If you want a good commentator to help you navigate the symbolism and literary context of each and every dish in this banquet, I recommend getting in touch, early, with Mrs. Ding from the Yangzhou Foreign Affairs Directorate -- she is one of the creators of this magnificient banquet. Enjoy!