E Body Door handles on my 73' Duster

I haven't done that peticular swap, but have done many similar swaps in the past. Building streetrods and customs, I have grafted newer style door handles onto old cars. it is not really hard depending on your bodywork skills. If you can cut the section of the door where the handle sits it will be so much easier because the E body handle is set into a groove on the door and bolts to a bracket inside the door, unlike our A bodys that bolts directly to the door skin. And be prepared to make new rods to match the E body handles to the A body latch...take lots of pictures and post the all. Good luck.