I currently have 5 customers and do not plan to add any more. This is a side line business and currently using a lawn tractor. I would like to replace it with a zero, but the prices hurt and I would never be able to repay that cost. Hustler dealer said that the mini fastrak would work for 5 yards, each one is no larger than .5 acre. Please advise on what to do. I was leaning towards a 36 inch walk behind, but I love the time that can be saved on a z.