Sorry for the reply and thanks to you both, i've got Covid and i'm not really thinking rite.
We'll i had to change It by the roadside, bought a pattern handle and did It. Not the easiest thanks to the tiny torx screws holding It to the door skin, panel was quite flimsy too, 1the Cars was vorn in 1990 so it's done its Fair share.
No rust in Italy mate, Cars last Forever here..