This engine hoist concept is intriguing as well, in that it leaves the bottom of the cab exposed on one side. You could rotate the cab around a pivot, at the end of the lift arm, where the chain attaches, then both rockers would be accessible.. Would not be stable though. Very similar to the cradle we would use for loading/ unloading boats off the truck and trailer.
http://www.accessiblesystems.com/bl.php
My engine hoist with larger pneumatic tires.
Another version!
