Drivers to transport a private sale vehicle

I will probably be buying a car through private sale in Pasadena Ca. I
live in Albany, Oregon, 800 miles away. I don't want to take the 2-3 days
to fly down and drive the car up to my house. I have a line on some
transport companies, TNT being one. I don't think they have the driver
option, just open or closed transport on a truck or trailer. I'm wondering
about the driver option, either professional or through an auto club. I
know dealers use drivers, but I think they are employees of the dealer.

Anyone have ideas or leads on drivers to transport a private sale vehicle?

--
Paul S.