I plan to market to residential lawns of 1 to 1.5 acres this season. How many lawns per day should I expect to handle with a ztr, a 48" walk behind and another motivated person to help? I am also planning to work a tight route. What quantity of production would be reasonable to expect? Also I plan to cut flat properties and ones with average amounts of landscaping. Basically one acre mansions. Any opinions would help.