i have 20 acres of rashes ground on a gentle slope down towards a main open ditch running through ground, it currently has some open ditches as drainage . The field next to this is also 20 acres that my father had drained back in the seventies with plastic and pea gravel round pipes, although can still be a heavy going field is a very useful field. I would love to get this other bit drained but I’m s bit worried about even asking for a price. I have an open rock quarry on our land but not sure if any of stone in there could be used as drainage stone so if the rock was of any use that would be a huge saving would just need dug and screened. Plastic piping will be another huge cost. Anybody an idea what this would cost ?