I'm not sure if you've found anything at all. I've been searching lately and haven't found anything either except this.
East West Wing Chun Kung Fu Tong
639 Weber Drive, Sturgis, SD 57785
Contact: Sifu Howard
Notes: We teach Ip Man Ving Tsun and have classes four times a week. We teach pure Ip Man Kung Fu and we also have classes for Qi Gong as well as Chin Na.
I did contact Sifu Howard and he responded via email. He is now in china teaching there, but he said he had a student that he would recommend but I haven't heard back from him on his students contact information. I live in Aberdeen and am very interested in learning WC. There is a Martial Arts Academy that teaches TKD here but I'd rather start in my preferred Martial Art than just to settle on something because it's all there is available.