^ Sorry but I can't agree with any of this. Are you telling me that after Star Wars and Empire (the merchandising especially) that George didn't have enough MONEY to make more wookiee costumes and find tall people? To conform to his ORIGINAL VISION? Bleh. He paid some mega-fine just so he could put the credits at the end didn't he? And being too strong for stormtroopers would have made it seem a hell of a lot more plausible than it was.
*edit* I know his reasoning was that he had established Chewie as a more advanced creature, and that he wanted the ewoks to be primitive, but that is a lame excuse.