the only thing i can find in my interchange book is that all the glass on your lancer interchanges with 60-62 valiants.
the door stampings are different [obviously], but it is possible that the handles are the same. i do not know for sure, but it may be worth investigating.
the only other option i can think of is to blast your existing handles, fill the pits with an "all-metal" type of filler, sand smooth, then powder coat them your color of choice.
i don't know if this helps you or not. sorry if it doesn't help.