You have to email them for a price list and I did that a few days ago and they sent me a image back in email. I included the part below showing prices on seed & rootlets.
They state on their website that the rootlets they sell are from their own woods grown site. I asked about the stratified seed they sell and in his reply he said the seed they sell is also from their woods grown site.
He also suggested that woods shade grown was less likely to be diseased than artificial shade grown. It seems to me that the plant spacing is more likely to cause more disease problems than the type of shade it is grown in. Just my opinion on that.
It does state on their website that they use around 100 lb of seed per acre in their woods grown plantings. I think Scott and others I have seen suggestions for wild simulated were in the 20-25 lb range per acre.