Even if the well is 470' deep and you set the pump at 460', the pump is only lifting from the water level. So with a static level of 110', that is all the pump is lifting from. But as you run the pump for a while the static level will draw down to the pumping level, and we don't know what that is. So if you just figure the worst case of 460', it will take a very large pump. So now you need a pump that can deliver 8 GPM from 460' of head. That will take a 1.5HP like a 10GS15. You would need to add a 8 GPM Dole valve to keep the pump from upthrusting when it first starts, and from pumping an 8 GPM well dry.
However, after drilling the well a good pump test would help you figure out the real pumping level and volume. That way you maybe able to set a smaller pump at a higher level, saving money and energy.