Am I paying too much in Title Insurance Costs - Kansas location?

I have recently sold my house and closing is near. The title company was selected by the agent. The title company wants me (the seller) to pay $850 for a ';Owner's title policy'; and $150 in closing costs. They buyer has to pay $225 for a ';Title Policy';. I assume the buyer's policy is the ';Lender title policy';. I understand this buyer/seller split is normal for Kansas. However, The $850 seems high to me when there have been several title searches on this property already with refinancing. Is there anyway to determine how these rates compare to what other title companies would charge. Is there a website that quote competitve rates....like what you would find for car/life/home insurance. Thanks in advance.