On their website, the weed knives look to be part of the kit, along with new chains and sprockets, and your choice of deck plates(manual or automatic/adjustable)

My understanding, is that the rolls, purchased by themselves, as an individual row set; would also be qualified for the "farm show special" just not little items, like sprockets, is what the gal mentioned. {This wasn't an absolute comment/statement = I think she was giving me her best assumptions, due to years past}

No, I don't have any idea, of the amount/percentage of their "farm show discount" = I would hope it would be more than 10% at the farm shows.

I did ask, if I purchased at a farm show, would they actually have those kits and/or rolls with them, so I didn't have to pay shipping = No, those bigger items all get shipped = they take so much stuff to these farm shows, already; she mentioned to me.

One thing, I stumbled across, on their site; was that newer, lower 9 tooth sprocket is greaseable, but takes a new a longer bolt and JD spacer, to mount correctly.