You may have difficulty getting someone to transport the glider OUT of California since gliders are illegal there. You will not have many available volunteers for the first part of the trip because there are not many glider owners - and those that do have gliders are not responding because they need to protect their own gliders.
One caution with forming a railroad for gliders. I strongly recommend that you personally speak to EVERY DRIVER that will be transporting the glider. Make sure you have full contact information - email, cell phone numbers etc. and share the information with the other drivers - so that the drivers can communicate with each other.
Gliders have been lost on disorganized Railroads. All it takes is ONE unreliable person to pick up the glider and disappear with him instead of meeting with the next individual scheduled to take the glider a bit further on his way.