Hi I am wondering if anyone could help me with a ballpark the cost to install an amour stone wall. I am looking to do the whole outside premiter of my yard. I need about 750 face feet of stone. I am getting a quote in range of 32k. The highest point of the wall is 4 feet and will run around the yard and head into one level high at the end. Again in total about 750 face feet of armour stone. Any advice or input would be great.