If my understanding is correct, I believe there will only be one Hondo animatronic before you split into one of the 2 main sections with 2 turntables each.
I am not sure about the pre-show rooms, it seems like there would only be 4, but they could have multiple rooms that lead to the same cockpit entry site. In one room the door opens and you go to the right, the next room you go straight and the 3rd room you go to the left, but they all lead to the same cockpit loading area.
If this is the case you could have one party loading for the ride,
One room per two turntables. The chess room will act as a holding and splitting room for two tables.
So after the chess room, you travel down a corridor that leads to one of eight cockpits?