Phone up all the insurers you can. Some insist on a full out of the water survey with everything hunky dorey. Others are a bit more flexible.

I bought my boat at a low price because it had a poor survey. First thing I had to do was move it so it could be repaired. Big obstacle, no-one would insure it. Then I found an insurer who would insure it just for the delivery trip. Result!

Then, once all the work had been done I shopped around for insurance. Most of the insurers wanted a full out of the water survey. The only one I had said it was a wreck and I didn't fancy shelling out for another. I finally found an insurance company willing to accept the original survey (saying boat was a wreck) together with my assurance and documentary evidence (receipts) that the necessary work had been done.

Try some of the smaller insurance companies who don't have so many rules and regs and can be more flexible.