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Hello, the amount of ductwork required will depend on where the furnace is going to be located, but assuming it will be located in a closet in the middle of the house.
You will need a mix of 6, 8 and 10 inch ducts... added all together it comes to 150 to 200 feet, and no return duct required if the furnace is located in an interior closet or the attic. If the furnace is to be located in the basement add about 30 feet of 20 inch round rigid sheet metal duct.
A good job however requires the duct work to be sized by calculations for each room and depending on the heat and cooling loads in your region of the country, and what equipment options you choose.