Were to find teak for replacement door  

Photos might be...
Photos might be helpful.
Ebay is your friend when looking for teak. Bear in mind the Danes et al never used sapwood teak in furniture and a lot of the teak available has a fair bit of sapwood (it is white) so you may need to be picky abot the boards.
Other places one the Internet sell tek veneer, And now that I think about it the odds are extremely high a door is veneer.
So post some photos.
Edit: good morning tktoo! Funny, you asked for photos after I stated typing and before I hit post.

Need photos
and/or a more detailed description, and your location to be of any help whatsoever.