I am planning on creating a few buildings in advance (and some mini-roads) and then having the public build whatever else they want. LUG members staffing the event can also free build, help the public build, observe, whatever. I did order and now have about 250 6×6 plates to be used.
I don’t think anyone will built a 10-12 foot building at this event. Or were you referring to he theater event in November?