Oh Boy
Boat -US and could try Progressive,state Farm won't insure boats any more.
When looked at boat insurance two years ago most insurers told me nothing over 25 ft and than some said 30 ft,I have a new 36.
I already had progressive up in NY for boat only and they at the time said they only do up to 30 ft.
When I moved to Florida full time in 2007 and started looking for auto insurance prices,when I got auto insurance they now said they would insure my 36 ft Hunter,the problem is the value of a new boat is very high and most told me they won't risk covering a boat over $100,000 except boat US and I guess you have found out it is very high,I have full replacement coverage with progressive,could have joined the Aux coast guard and gotten the insurance at half the price but no hurricane coverage for a boat over $100,000.
Good Luck and let us know how you make out.
Nick