Do you have any advisores with an insurance background?
How do you plan on calculating the risks/price? Normal insurance appraisals can be difficult but they have many years of data and models to base things on. As this havent been done before, how do you make sure the price matches the risk?
Also how do you spot a false claim? I am guessing there will be countless attempts to exploit the system.
I really like your idea as it will help the blockchain ecosystem a lot, but my main concern is whether or not it can be run well enough to make a profit.