1973-76 Duster Grill Conversion to 1970-72

Hi I was wondering if this could be done- 1973-76 Duster Grill Conversion to 1970-72. I heard that all you had to do was change the hood? Do the lights work if swapped. Also, can you do this to a 1973- Dart Sport to a Duster 1970-72? Thanks

hood latch support is totally different and 70-72 support bolt to the fender's as well as the radiator support, So it all needs to be changed.