Door won't latch on my '62 Valiant

OK, I've got it pretty well diagnosed. The main reason it wouldn't latch was because the latch was not "cocked", so I pulled back on the handle inside the car to **** the latch into its proper position for latching, and now it latches closed OK. (I should have remembered to do this from my earlier experiences with '50s and '60's MOPAR products!! Doh.) Except that the outside pushbutton doesn't work. That must have been the original problem, before it got "masked" by the cocking issue. So I've got to remove the interior door trim to repair the pushbutton linkage.