Non of the mainstream insurers will touch it, you need to speak to a specialist insurer. Howdens-Thatcham/comfort/brentacre/Just Kampers etc.Interestly I have talked to the insures and as a modification to the suspension has been lowered by more than 5cm they won’t cover the vehicle at all! the insurance co -any being Admiral. in fact a lot of companies will not even quote for it. I am now awaiting a quote from NFU Mutual and a company called KGM