i'm not a bagua expert but a good starting point could be to google more infos on 2 teachers:
- he jinbao
- zhu baozhen
maybe disciples of mr. ma, who is featured in the articles on this homepage...
or roam the parks close to your area in the morning, there are allways good bagua players training...good luck!
If anyone has advice on xingyi teachers in nanjing xuanwu district please post in the other tuibudahu post...=)