We have a 50k pound triaxle and a Ford L9000 for the Bobcats and DX85/DX180, we have one of our our Boulder guys haul our DX235 for now on his low boy. It doesn't move much as it goes to the bigger jobs now so its there for weeks and weeks. I used the Mass ex guy's Trimble GPS once on each wall for a benchmark for my trench for the walls around that ped tunnel; after that no. The SRW guys have a laser/stick for their trenches and walls for grade but I am within a 1/4"-1/2" whether I use the laser or not so for me it's a waste of time. I don't carry a laser with me. Usually just look at my stakes and I can get as close as they can with the laser. As for top of wall I use the grapple to measure as I go because I know different dimensions on each Towtem. Then I don't have to get out and pull tape, I just use the machine. If something has to be closer than 1/4" I have another way of doing it but that's a secret I don't want to give out right now. I've watched other boulder companies during lunch when they were working near by to see what they do different since I was bored. Usually they have about 2-4 guys where usually I work alone unless there is a ton of backfilling and packing to do. We work a lot differently TBH, kind of interesting. Never used a Dozer to backfill. I've only run a dozer a handful of times and it had nothing to do with building walls.