Need map with large FLAT area

[dragonsphotoworks]

I keep trying to level ground for a farm but i end up with cliffs and other deformed land. Tried the mod map flatland 4x and almost every where is FLAT so when i go to actually level ground I'm ending up with lot of unpassable cliffs lol Which i then need spend fortune on smoothing out so tractors can traverse them. With due to height ends up effecting 30-50 meters away from flattened area..

Problem is i dont want a 100% flat map with nothing on it. As thats all I can find otherwise. I need an area thats around 225 meters x 600 meters of flat land for my buildings and storage areas.