Insurance costs

Hi all, looking to buy a corvette and some deals on new ones are really good. My issue right now is insurance with liability, collision and comprehensive with highest deductible comes to 500+ a month. I moved to US from abroad last year, and have a 10 year clean record. Just got my US license couple weeks ago, any tips to get this number to something more "reasonable" like 200-250 a month? Maybe some companies that take foreign record in account? Am 28, male, single