Hmmm, MB recommends the crankshaft nut for turning the engine over. Wonder if they knew what they were talking about or maybe their car did not have power steering.
It's your car.
It may be extra work, barely. Once you get the first lobe lined up, count the number of "cranks" on the ratchet till the next one lines up. After that, just count the cranks and the next lobe is usually lined up.