SEARCH. This has been covered probably more times than anything else.
There are a few complete kits out for the KA, and if you're interested in buying a whole kit check out IAP's - http://www.import-autoperforma....html
Another way to do it is piece your kit together by buying everything individually. You can save a good bit of money this way, but people often try to do it on a budget and buy cheap parts resulting in a cheap kit. You shouldn't just go into it blindly, like I said, SEARCH (especially the KA-T forum, and check out
http://www.ka-t.org) and then after understanding more about turbos and everything involved pick the right kit for yourself.