Since it is a six could lay it on is side on a pallet and slide it in with a cherry picker. Drain all the fluids out so none will spill out.
I don't have a cherry picker at home to get it out of the truck. I swap motors so seldom that I just rent one when I need it and try to keep the rental down to one day.
The motor will stay in the trailer for awhile and then get lifted out with a truck crane on another old truck I have and then get put on my engine stand and put in my work shop so I can clean it , replace the seal and gaskets and then paint it.
