They started with an engine, and built a bus around it!
I’d say GDads and 3B are probably on the right track.
Another thought if you don’t have enough height or reach with the cherry picker - construct some sort of a-frame through the door openings….and use a chain hoist.
Getting the engine UP would not be a hard thing with that sort of set up. Getting it OVER, might be.
Whatever you do, be safe. These things are no-joke heavy and awkward.
