Probably the best option is to learn from a mohel or get good advice from a good mohel. The best and most friendliest Mohel I know is Rav Pesach Krohn, This web site has his number and email. I know that he's busy doing britot and lecturing, but, at worst, if he can't train you, I'm quite certain he will advise and, if appropriate, recommend you to the right person.
Another possibility is to contact his son in law, Rav Ephra'im Perlstein, who is also a mohel, info here.
