Try RH Specialist, Peter James or Carol Nash, there's loads of classic insurers out there. What does it say on your V5C? The name of your suggest is was a camper at some time
http://forum.commervanfan.co.uk/index.php?threads/classic-camper-insurance.8026/
http://forum.commervanfan.co.uk/index.php?threads/classic-camper-insurance.8026/