You won't find the handle or lock new here, they were Australian specific parts.
Handle is different to 850 or UK Mk1 cars.
Lock is similar, a UK one could work [maybe], but I've never done it. Mine was worn so I found a good S/H one, washed it out then filled it with powdered graphite.
If you have a copy of the Scientific Publications/Gregory #64 manual the Oz doors are properly detailed in there.
Basically there is a circlip on the inner end of the outside handle which must be removed, a single screw behind the chromed cover, then there are 2x more screws that hold the outer handle's escutcheon in place. Don't drop the 2 screws or the snail spring into the door...!
The door lock can then be pushed into the door and removed after its mounting screws are taken out. This can be done with the window and winder mechanism still in, contrary to what the book says.
[edit] When refitting, I found that the %$#^@ circlip can be dispensed with, IF the C shaped lever is bent open a bit.
