I just put mine together; here is the assembly sequence:
Install the hood on the cowl, springs and all. It's easier to do it first before the fenders are in the way. Leave hood in the up position. Mount the radiator support loosely onto its frame crossmember. Start out with about 1/4" rubber shims under the feet. Bolt the inner and outer fenders together OFF THE TRUCK. Install the inner and outer fenders onto the truck AS A UNIT. It will go lots easier (as I discovered the hard way). Install the large brackets between the radiator support and the outer edge of the fenders Install the lower front splash shield. Connect the rods between it and the radiator support. Install the grille. Install the hood latch panel between the grille and the radiator support. Install the radiator. Install front bumper and valance filler panel.
Mostly leave all bolts loose until you get everything assembled and adjusted. It almost seems as though Chevy designed these parts to fit under tension to prevent vibration. It helps to use several Phillips screwdrivers as pry bars to coax the various holes into alignment. Put a screwdriver through the mis-aligned holes and reef hard until you can get a bolt through or clamp with vice grips. Body bolts with threaded points are easier to get started too. Don't be afraid to enlarge or elongate holes to match up - after all, the factory did. And lastly: treat this information like gold: like you, I once searched extensively for this same question and never actually found the step-by-step answer so had to learn by trial and error ;-)
