For Skyrim AE (1.6xxx) and SE (1.5xxx) we have an all in one fomod installer that you can use to customise exactly which Kaidan mods you would like to install. The fomod installer will also take care of the load order settings for you. We also have the individual mod files on the same page if you would prefer to download them that way.
For Skyrim LE, Reyna has been kind enough to backport versions of Extended Edition and Immersive Features, the backports can be found here.
For XBox players, Spectromance is our official porter and has done ports of Extended Edition and Immersive Features, you can find the bethesda links here.