I have a 40 year old conrete retaining wall, about 38 feet in length by 3 feet high and 6 inches thick. And is partially falling over on its own. Trying to get a general idea on what the prevailing hourly price is for having a backhoe come out and tear it out. I'm seeing prices on the net ranging from $65 - $95 an hour with 4 hour minimum. Is this in the ballpark?