RCHR. This may be a little costly, but not as much as you would think and sneaky indeed. Have the front bumper chemically milled (I know an excellent Dipper that I could personally deliver it to) then have it rechromed. Make a few aluminum pencil bar braces to critical points of vibration and it will be a ringer. I agree, I personally don't like painted bumpers. There are flat bolt on hinge type glass hoods out there. I forgot the company/s making them, but once painted like factory, the notion goes away. This is crucial weight taken off high and frontal area of the car. Good dietary measures here. I believe the later Feather Duster and Dart lite hoods may not be the same in style and fit though they have aluminum under support structures. Yes, your hood is a little complicated to make in the lite alloy, but not impossible. Costly yes and four point pinned it would have to be.
Esthetically, I got away with my incorrect four point pinning system for a 65' because my car is a combo of A864, A990 AFX and 2% cars all in one, so it's par for the course.