An acre of topdressing...well lets calculate that.
An acre is 43,560 sqft
At 1/10th inch deep that would be 4,356 cubic ft
At 27 yards per cubic ft that would be 161 cubic yards
At 7 yards per truck that is about 23 truckloads
You will probably want to bid at about 3 to 4 times
Are you listening, Turfco Bob? Someone should invent an aerator that would pulverize the cores so that you could aerate and topdress in one step. And if possible apply seed after the aeration and soil pulverization.