I must admit, that is one of the coolest low-cost Star Wars costumes I've ever seen. Hell, for $70, I'd do it. I'm actually considering it. Although this year I want to be Robert Smith (singer for The Cure, in case anyone was ever wondering); so maybe I'll buy it and store it away for next year.
Is it a requirement to hold your arms out like you're carrying an invisible watermelon under each arm? Cause if you let your arms just drape normally I think you end up looking very weird and not fat enough