What years/cars hood latch/grill framework fits a 71 Duster? Fred 2.0 ??

I believe you nailed it with the 70-72 Valiant/Scamp/Duster stuff. I kinda/sorta think 69 Valiant stuff might work, but not %100 sure. I can supply pics of the upper grill support and lower bumper filler from my 70 Duster if needed.