We are at 15 sacks for this group buy.
If you have the price list email, edit the link I sent you and replace the name at the end with Price%20List.xlsx and download the new spreadsheet. It has more items to choose from including DME, vienna, carapils, crystal, etc. and has the prices with tax as well as the sack weights (some are 50, others are 55).
As usual, let me know if you have problems with my dropbox.