I'd take them if you were in europe... I never have enough lens elements for building new experimental objectives. Zoom lenses usually have some pretty big elements that can be used for very soft high speed lenses. This way I got a lovely retrofocus (lens to film distance is bigger than the focal length) 28mm/1,65 lens with image circle of about 55mm. That is f-stop one point six five and a lovely fisheye-ish effect for 35mm film.
My advice: Try to repair it, but if it doesn't work, take it apart and try all possible combinations of the elements until something interesting comes up.