For those that topdress with a Turfco/Earth and Turf/Ecolawn applicator... What kind of time does it take you to actually apply material to a lawn and clean up. From pulling up to the curb, to blowing away the last bit of material from walks? Lets say a standard 7-8k sq ft lawn, for examples sake. I am looking at buying a used machine b/f spring and am trying to work out some pricing. If I had to throw a dart, I would say 1.5 hours to do a job like this from start to finish. Am I off?