Bolt bib, fenders, and aprons together off the truck. Adjust/slot/whatever fender holes to allow bolt up. That'll get you the best alignment on those parts. Then bolt it all to the truck, bib hinge, fender holes, etc. Post up your hood problems afterward, no way to check alignment without the tub bolted.
This is exactly what I did. good info. If you can picture the aforementioned parts dropping down as one unit, the fender bolts are a great adustment to drop down as a whole.