Jim,
You still can pick one spare airplane from the list.
Guys, I think we are misunderstanding one thing. When we say that we don't have spare airplanes for you, it means that after the first leg deadline passed you cannot get another airplane from the list because all of the source airplanes will be locked down on the first airport.
On this case, you still can pick up another airplane until 17th March. After that, you must end the event with the airplane that you have.
So, Jim, pick another airplane, and send me an email so I can reserve it for you.
Regards,