A laser level is almost worthless for your purpose. I tried one and had to wait until after dark to see the line after 100'. Stumbling around in the dark is no fun! A transit will work well if you have someone to help you. Check into topo maps for your region. You can get some very accurate maps for less than a transit. You should also check on GPS with elevation. The real accurate units are expensive but easy to use. I would love to have one.
A transit will work well if you have someone to help you. Check into topo maps for your region. You can get some very accurate maps for less than a transit. You should also check on GPS with elevation. The real accurate units are expensive but easy to use. I would love to have one. 
