Do you have enough interest in these replies to move on to the next step? I count 20 bags on page 5&6 alone. In cases where a person said '2 bags, maybe 3', I counted that as the lower number.
One thing I could suggest, though, is to not open up the entire inventory of the seller. We did a couple of pallets back in March, and just sorting them into types of malt (pale, Maris Otter, pilsner, etc.) was a chore. We would have up to three bags of malt from different companies, and because of limited space, we had to group them. Just pick a malt, such as 2 Row, and choose one company, such Briess, to get it from.
Our vendor had to make some substitutions, and that complicated the picture, so just let the potential buyers know they might not actually get the exact malt they were looking for.