All mobile homes which are moved or replaced within the mobile home park shall be situated to not be located in a setback location. Building setbacks shall be 75 feet for a front yard setback along New Jersey state highways, 20 feet along arterial roadways, 10 feet along municipal roadways, five feet from interior roadways and 10 feet for a rear or side yard setback. Additionally, no mobile home shall be moved or replaced in a location within a ten-foot perimeter of an existing mobile home unit or within five feet of a shed. For purposes of measuring setback requirements, distance shall be measured from the outside walls of a mobile home unit, exclusive of stairs.