If you have no desire to do the job yourself if at all possible I would check with United Van Lines. The agents in our town have a heavy machinery rigging and moving division. For longer distance moves this division loads trucks from other agency outlets and sends them to their destination. They will move machinery across the state or across the country.
Another option might be a company like PODS:
PODS is much more than a traditional moving company. We offer portable moving and storage containers for local and long-distance moving and storage needs.
www.pods.com
They specialize in moving containers across the country. In this case you would also have to contact riggers on each end to load and unload the container.