Looking at putting autosteer in autotrac ready 2008 JD 8430. This would be used for tillage with waas signal. I know what the cost would be with EZ steer, but since it is autotrac ready, what would the cost (ballpark figure) be with hydraulic steering with a trimble 750 or FMX? What is all needed? Is it that much better for the extra money, or is EZ steer good enough? Rather not have the EZ steer on the column, but if the price is a lot different, may have to rethink. Thanks for any input.