Welcome.
& maybe try.
www.premiumchoice.co.ukor '2gether'
Off road 4x4 cover, Modified vehicles, uses and gains no NCB, limited mileage, you may be able to get an agreed value.
Will allow winches but not insure them for loss.
Many of the Brokers will be providing cover from the same Insurance company or Policy and have the same exclusions,
but the price can vary widely.
have fun.
george