Ok, I am not saying people are applying 200 lb of force for long distances. Rather, if doing so for ~6 inches makes the rest of the process simplified it is a viable option. Especially if you are selecting the strongest groups from ~40,000+ workers.
For a direct comparison you can look at how many people moved litters over long distances. There are a few natural poisons to carry a litter especially if you can group people by height. https://en.m.wikipedia.org/wiki/Litter_(vehicle) People would get swapped in an out for long trips allowing for faster speeds, but up to ~100lb per person via logs was not uncommon.
For a direct comparison you can look at how many people moved litters over long distances. There are a few natural poisons to carry a litter especially if you can group people by height. https://en.m.wikipedia.org/wiki/Litter_(vehicle) People would get swapped in an out for long trips allowing for faster speeds, but up to ~100lb per person via logs was not uncommon.