I just got a call for an install of about 200ft of silt fencing. this is the first time i will be doing it but the client said he will help w/ first section and then he has to take of to meetings. i know the basics, 3-4inches into the ground and stakes 6-10" apart. how much should i charge and how long am i looking at? ( assuming no set-backs, rocks etc..) cant mow so i figured, gotta do something else besides off-road!! Thanks in advance!