i would keep the Champange and Champagne combo babies, they would would well w/ your Ghosts. i would most def. keep the Disco YB b/c Disco combo's are cool esp. if u pair them w/ other BlackEL complex animals. i would also keep the Cinny b/c i love them and Mahogany's for the potential. i would keep the Axanthics (and maybe some of the het Ax) if they are same line's u already have.
so hard to choose! good luck!