I’m just saying, a construction job of that magnitude would require a hell of a lot more manpower than the Imperial army had to offer. I’ll bet there were independent contractors working on that thing.

And Luke didn’t have anything to do with the second Death Star being blown up. That was Lando and Wedge.

EDIT: I guess he helped getting the shield down. They wouldn’t have gotten the Ewoks on their side if Luke didn’t levitate Threepio.