Hey noroad! Have you checked out Rock Krawler's stretch kits? They come with everything you need to get about a 3-4" stretch, I think 3-4", but anyways the good thing about them is they have an option that allows you to just order the control arms and link components and you can run whatever springs and shocks or coilover set up you like!!
Take a look:
http://www.rockkrawler.com/ProductDetails.asp?ProductCode=JKXFLA-UPG-2