Here is my thinking as of now - any feedback on how well this might / might not work?

The lift is about 100' from shoreline and it has two wheels - one in the center on each side, so was going to use the wheels to get it to the water's edge. I was going to purchase a few tractor tire inner tubes and place one under each of the four sides and float the lift to the needed location. Since we have a lot of muck and the footing is real bad near the lift location, i was going to move it there and then just let the air out of the inner tubes to lower it into place.

Hoping it works as easily as it sounds...