I am having difficulty estimating a retaining wall. I have done some inthe past, however, this one is longer (120'x3'-4'tall) and the topography is challangeing to say the least. I will not have alot of room for equipment through some of the area. Materials aside, has anyone run across a similar project and how much did you charge for the installation? Is there a good price per square or linear foot? Also, the wall will be 3'-4' tall along the side of a hill (lower section). I am contemplating wether or notI should pour a footing for this. Generally, anything under 3' I do not. Any suggestions?