I have the same problem with that fancy little mini hood that opens up on my TO-35 Fergerson.
All bumper stopper and parts are in place, just unbelievable that in 1957 it took approximately 14 parts to mae this small hood insert. What were Fergy engineers doing?
I think I finally solved the vibrating problem on the Fergy by doing the following. I cut two short pieces of fairly soft rubber coolant hose like heater hose, glued them to cross members under the small hood. As the hood comes down and locks in place these pieces of heater hose compress and keep tension on the hood, which stops the vibration.
This may not work on your Ford, but after years of listening to the vibrating hood or just opening one end of it to stop the noise I finally found a solution that worked.
I guess each of the 14 pieces of the hood closing parts are worn some after 56 years of use, so no amount of adjustment was going to stop the hood noise.
But I finally beat it after many years.