FIRST I WOULD DETERMINE WHAT PRICE RANGE THAT I WANT TO CONSIDER. REMEMBER GPS IS QUICK AND ACCURATE BUT IT IS AT THE TOP END OF THE COST MARKET. ANY TOTAL STATION AND DATA COLLECTION PACKAGE WOUL DO WHAT YOU WANT. YOU CAN SPEND AS LITTLE AS 8000.00 OR AS MUCH AS $30,OOO.00 IT JUST DEPENDS ON...