If your main goal is creating and exporting CC3 characters, it would be more useful to invest in CC3 Pipeline, which is optimized for exporting to game engines (it's also constantly improved as opposed to 3DXchange).
CC3 Pipeline also allows you to transform DAZ characters into CC characters (there is a lot of DAZ content that may be of interest).
You would need iClone to create and add animations to your characters. CC Essentials is good to have also.
So I looked under bundles and there is a Character Creator 3 Pipeline + iClone 7 bundle on this page (https://www.reallusion.com/store/product.html?l=1&p=cc
), called Character Creator 3 Animation bundle.
You would need to buy the CC Essential separately (there really should be a bundle with that too).