I'm already in the midst of doing a group buy of general tickets with my Yamaha board. We did a similar thing for the Laguna Seca GP race when it came back. I may end up having a few to spare, but too early to tell.
If this board wants to do a group buy, here's how it works - You pledge to buy 20 tickets. With the group buy you get free bike parking during the day, discounts at the gift shop, a group lap around the track (last I heard they're talking about doing that on the Thursday before or the Monday after...boooo!!!).
The good thing is that if you can't get 20 people to buy tickets you still get to keep the tickets you need but lose the group perks. I already got my invoice, but the money isn't due until sometime in August.