Moving oven

The baker I work for is about to buy a used “6-pie” size double stack from another business a couple hours away. He got a very good price on it and is considering professional freight shipping options but would like to figure out if a DIY thing is doable given his limited budget. It would fit in a UHaul but we’re unsure how to get it potentially over a curb and into and out of a truck. (The location here has a loading dock type thing we can wheel it into. If my measurements are correct it will fit.) Does anyone here have experience moving equipment of this size and weight without hiring it out? Are we insane to think about trying this ourselves?