This is where I got mine
.. unsure what he has available at this time. I purchased a 100 grade A large (8-12 inches) for $25, that price also included shipping. It was the cheapest I found - but it did take a few weeks to get to me because customs had checked it and held it - which is common. They came in a large ziplock bag in a box so they weren't crushed (There was another I purchased from ebay that came in just a thin shipping bag and they all got crushed in travel - didn't like the looks so I never used those leaves, too bad can't remember who it came from).
Here is another place
I found that looks real good - haven't purchased it yet, so unsure about time, etc. But they look like they know what they are talking about.
A lot of people use Amy for their source
, as she is in the States and shipping is quicker.