You could get
an emptor from a Tradition, and switch out the blue bottom cover for the red cover for the Classic III. You would need to replace the shakeout bag with one with a full zipper to use disposable bags. The Legend II bag would be a good choice since it matches pretty well. If you use the Tradition emptor, you would need to use Style 1 bags, unless you find a way to switch out the fill tube with a newer style one.