You might find it on Louis' blog. Many of the older creations are there, but some aren't. If it's not there, then I'm sure if you search GoS, you'll find it. It's usually one of the first places I look outside of the graveyard and SimsCave for missing/obscure meshes.

Edit: The Kadaj hair is not on the blog, but you will find plenty of other, older stuff there. Also, you'll find a few other things on MTS under the user "Ren", which is Louis/SimCribbling's moniker there.

Now, the Kadaj hair. It is on GoS, as I suspected. All I did was plug "Kadaj hair" into the GoS search engine and voila! It's in this post. The mediafire link is iffy, but the boxnet link seems to work fine.