to be honest stick it in on a price comparison site people will cover you but i dont think it will be that cheep
i would also look for a completly new policy rather than changing your exsisting policy as a new policy is cheaper to get than a renewal as insurance companys charge more for renewals as thats then when they start to make there money on the seocund year
make sure you shop around with alot of diffrent insurers as to my knowledge egg and direct line are both part of the rbs group and you will be getting similare if not the same policy and premium quote