What should I expect to pay to add 5 additional RV lots to a park? I need to add electrical pedestals, sewer lines, and water lines. Along with affordable RVs. Currently, the park is on City water and sewer. The surface is gravel, and I would use that for the pads as well. The total linear distance is around 300 ft. I plan to use 50-amp boxes. The sewer lines would be individual versus a dump space.