Have about three quarters of a mile worth of fence line I need to spray with Roundup to keep clean, and also may have as much 3-5 acres of land I may want to spray in the future with fertilizer and/or weed killer to develop a nice grass pasture. I have never had a sprayer before. Would I need a sprayer that sprays off to one side so that I could just ride along the fence line to spray, and one that could also spray a wide path behind to get the fields? What specific sprayer would you recommend? I could use a tractor or a Mule to do this job. Thanks!