You're in Wisconsin, home of Kohler. What do you mean it's being "shipped" to you? When I was installing a lot of those, they came in a crate which allowed it an easier way to carry them in. One time I showed up to a job and the homeowner had bought it, inspected it, and the crate was gone. There is almost no good way to carry a cast iron tub without the crate I found. I normally remove the crate after it's in the bathroom. I need to be able to hole onto the strapping as I carry it, and it also hand trucks better that way.
One interesting thing about those tubs to me was watching them being poured at the factory. The guys were wearing shorts and tea shirts dumping these buckets with molten iron into molds. They wouldn't let me take pictures and I sure wanted to. It was a fun tour.