I have used many things to move boat lifts, inflatable diving bags, floating docks and a 14’ aluminum boat.
For seasonal install and removals on our small lake, we use the floating dock, using hand winches to pull the cradle down lifting up the legs of the lift, towing the lift with the aluminum boat. Can also work with cantilever lifts.
I put the lift on the aluminum boat to move the lift several miles when I bought it, the seller thought I was crazy.