Buying a kit would be the best way to do it but not the most affordable.
Check out this site for some good tech, I think a few guys have turbos with stock K members.
http://www.theturboforums.com/smf/index.php?board=32.0
If I was going to attempt it, Id start with headers from this guy...
http://www.turbochargedinnovation.com/products.htm