rdjfx3, have Autozone look up part #76159. Thats the complete kit for timing chains, guides etc.
Keep looking - http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product_Timing-Set-S-A--Gear_20280211-P_166_R%7CGRP60010_1652253699____I need to do this timing chain job on my 2005 and am running into roadblocks sourcing the parts as well. Looks like GM OEM is the only way to go. It is just a pain having to find all the GM part #s and then who knows how much it will add up to. The autozone timing kit seems like a dream - everything you need and a great price.