The best way I can think of and have done it a couple times now is to use a drop bed trailer. Not a tilt bed, but a hydraulic drop bed trailer. The entire trailer bed drops all the way to ground and stays flat for the entire lift/lower cycle. Tandem axle trailer is perfect size for all but the largest lathes. The advantage is that you can use pipe or skates to roll the unit from the trailer to the ground with only about a 6-8” elevation difference. I have bolted to 4x4 timbers in one case and just set down on 2x4s in another. These trailers have heavy duty tiedowns al the way around the trailer. I have also moved a coulple mills this way as well as full tool boxes, etc. the only downside is that they are open air trailers, so weather and or shrink wrapping may be a concern.