I need to edge about a half mile of sidewalk (both sides of sidewalk and curb along road), what would be the best way to do this? Should I do it my normal way of using my stick edger or possibly rent a walk behind edger? Keep in mind this area hasn't been edged in over 10 years. Oh, and how much would you guys charge for a job like this? I've been doing this for a while but I've never done a first time edging of an area this large.