Adultwork does have a search option where you can input height as a criteria.
I once saw a girl who was 6 foot 2 barefoot , unfortunately she is no longer active on AW.I think that at the time she was the tallest or second tallest in the whole UK!
If you want the perspective of looking up you will probably have to cheat with her in very high heels or you could try standing on your knees!