I had a similiar problem recently. Unless you can pull it behind your car, transporting a catamaran is expensive. A rough rule of thumb is:

Friends and great deals - $0.10 -$0.25/mile (sometimes free)

Commercial Transport (Trucks, trains ) - $0.25-$0.75/mile

Commercial Boat Transportation (with no trailer) $1.00-$1.50/mile

Unless you are using a boat transportation company or it is being carried by anouther sailor, package everything as if someone is going to drop a big heavy wooden box on it.

I would consider selling the boat in Ca and buying one on the east coast (they are cheaper when there is still snow)