I would go and visit a broker who specialises in transport, you will need good insurance to drive the very rare, last in the world Ferrari or Harry Potters Anglia on the road and on and off your transporter, then you will need minimum third party insurance for the transporter, you will need some public liability in case the ramp slips and removes Lord Fauntleroy leg or you hit the archway of the Rose Garden.
Imagine the paperwork if PCSO Dumphuc decides to crush a Million pound car because you drove it on the road 