Identify which land, if any, you recommend the county purchase outright, explaining why

You are a consultant to a U.S. county that is planning to build a new general aviation airport capable of accommodating business jets in a sparsely-populated area that is now used entirely for agriculture. Airport planners have projected the surface noise impact of the airport and overlaid the FAA obstruction clearance requirements for the approaches to each of the airport’s runways.

Referring to this example: Airport Noise Projection and Required Obstruction Clearance Diagram Download Airport Noise Projection and Required Obstruction Clearance Diagram

Identify which land, if any, you recommend the county purchase outright, explaining why.
Identify what areas, if any, you recommend the county impose land-use zoning to preclude noise-sensitive uses, explaining why.
Identify what areas, if any, you recommend the county impose height zoning, explaining why.