I realize this is general question but, what would you think a fair price to trench in and install 5,000' of 2" gasketed sdr21 is? The reason I ask is I am bidding a job and the other guy planned on chain trenching. I am going to plow. This is for a horse property, extending the mains I and installing some big guns on posts. I am able to cut the amount of pipe in half by plowing because I can go across the pasture and not worry about settling where the trencher will have to go around. Anyway the owner about fell over at the other guys price but they didn't tell me what it was.