What tools are required for shooting simple elevations? I just want to be able to transfer an existing elevation to other points for footer work? Anyone have experience in this area? I'm sure it will concern some type of transit but I need to know what to look for so I can find a used one. Think "cheap" when suggesting tools. lol I have a water level but it's only 30ft long. It is good for my own use but others probably wont be satisfied with it and it wont work in every situation.