hey hope it helps you out as much as possible...those ole ad's were built pretty tight and once you take one apart- boy you find that after all the years of twisting and rust and all, the parts don't always go back as easy as when we take them apart. You will have to use a little force to line up those inner fenders to the grill. It will work one bolt at a time.
Good luck. keep on stovebolting!!!!