-600 acres of land
-build a steel wall 30 feet high, 15 feet deep, 10 feet thick
-cover the steel wall with cement, adding another 5 feet in height, depth, and thickness
-the only way to get in the fenced area is through a steel door that is just as thick and tall, and slides open to the left
-the land has to be absolutely free of any type of structure…weather it be a building, shed, or even a tree
-this is in wisconsin, united states
-and paid by cash
-this is just a question. i am not saying i have the money lol i am just wondering how much you think it would cost to do such a thing