I have not totally reassembled my front end as I am waiting on my upcoming paint job, but I will give it a stab.

1) First I created a subassembly. I installed the "J" (I prefer "boomerang") shaped brackets to what I call the "upper header panel". The upper header panel is the heavy gauge metal piece that is prow shaped to match the beak of the hood.

2) Next, I installed the subassembly from #1 to the subframe horns and the radiator support using bolts (below) and the rubber cushions with threaded studs on them. I did not tighten it up all the way.

3) Next I attached the headlight supports, which already had the metal bulb cups attached, and then the headlights to the "J" shaped bumper brackets.

4) Next created another subassembly out of the bumper - But I skipped the grills in my case. You would want to attach the lower bumper brackets to the bumper itself. Then attach the grills on their lower brackets to the lower bumper.

5) Get a buddy and position the bumper subassembly up into the space such that it slides under the "upper header panel" and the lower brackets attach to the "J" shaped brackets.

6) Bolt the top of the bumper to the "upper header panel" using chrome headed bumper bolts upside down and then screw the upper bolts through the "upper header panel" down to secure the tops of the grills.

7) Align the bumper assembly and tighten up all the bolts.