I see 2 options.
1. Approach several insurers and make general enquiries on the question.
2. If no joy, approach an insurance broker to place your risk as they can put the arm on insurance underwriters more easily than you or I.
I specify "general" at 1 above as distinct from applying for a quote to see what happens. If you approach insurer A and they refuse cover on the licence point that might then become something that then has to be declared, in turn, when you approach insurer B.
I know that there are relatively new laws about what insurers and those seeking insurance may or may not do or expect. However, you need to be careful about misrepresentation / non-disclosure if an insurer has refused your application for cover.