Hi try this site:
jillsconsignment.com
They currently have a Hermes birkin 40, kelly 25 and 35.
I have purchased from them before and they are authentic.
They also take paypal.
There are some Japanese websites that you can use for reference. They have a lot of pictures with style numbers. I think if you google chanel followed by any style number you can find, you should be able to find the websites.
Very reputable (she's been recommended here and on another forum), and she has been exceedingly prompt, gracious & informative in the several e-mails I've exchanged with her: http://www.annsfabulousfinds.com