Updates:
I found a replacement Intake Manifold complete with rails, cable TB, injectors, etc. for $40. It also has the original gasket, so reusing that will save me $50 and pay for the manifold essentially.
I swapped out the truck pan for a CTS-V pan, and although that hurt the pocketbook, it fits like a dream. The windage tray is the same full length tray as the 5.3 so at least I saved a couple bucks there.
