Have you tried Safeguard in Leeds.Cannot state if they will or not you can only ask, but it was the one we were with for our insurance from 1990-2009 when we change to our mobility car.
Flux will probably do it but be carefull, their first years insurance is usually a good price but their renewal is usually very high.
I switch between Shield and Flux alternating years !!
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets