Don - he's asking about the Arresti III, that I'm (and cd3217) is flying (pictured in my avatar)....I haven't flown the Focus, so don't feel I can comment. BUt as to completeness, the Arresti's have everything, but some of it one might want to replace (for example, the alum tube and alum gear - using CF replacements can reduce a LOT of weight)

I do believe that the Arresti has slightly more wing, if that's an important interest area.