I have an older lady and gentleman who live side by side that want there pasture fence line to be weedeated. The pasture is 1-1 1/2 acres. Remember just the fence line. I do not know how much to charge. I use a Stihl FS80. The grass isn't tall enough yet that my weed eater will have no problem. I figure an hourly wage but how much? Any thoughts will be greatly appreciated.