If the residential shop has a concrete floor the scissors lift is a great way to go. Add the rental & some non-productive time to the bid & have fun. I timed myself on a commercial job with identical tasks & the lift cut my time in half. It was a lot easier day with the lift also.
BobbyHo has it with the ladder. A 16' stepladder has a huge footprint. The legs may be 10' apart and it might weigh an awkward 200lbs. It's much more common to use scaffold, which you'll need a second guy to assemble.
Dave
