Insurance rates are going to be rather variable. Hull insurance will obviously relate to how valuable the boat is, but will also relate to how much experience you have on similar size boats.
Liability insurance is not so related to the value of your boat as much as the odds that you or the ship may cause damage to another or the environment. Your resume is probably a driving factor here.
In larger boats with good experience, I would say that 1% of boat value per year is reasonable finger in the wind. Our hull plus liability coverage, with hurricane coverage added, is about 0.6% of hull value per year, with 5 months on the hard. I know some that pay 1.5% or so.
I always recommend that owners consult with a knowledgeable marine insurance agent/broker. When you buy directly from the carrier (Progressive, State Farm, etc), there is simply a conflict of interest to not tell you everything you may want to know. Insurance is full of nuance. In some cases is replacement vs. market value. Do you know the difference in insurance terms? In others, its simply a matter of which carriers are better at paying claims. Yes, if you want less grief in collecting on a claim, you pay more for the insurance.