I have a traders policy with 5 years no claims: they will only pay out a maximum of 5k per vehicle, and my 3 dr, even though it is mine, has to be put on the policy as 'in trade' and not my personal vehicle, plus it is only 3rd party

I need a policy that will not need my no claims (as that will have to stay with my traders policy), and give me an agreed value of 10K fully comp. It is a weekend standard 3 door, but immaculate.
Anyone know of anywhere who could do this?
cheers