Only way to replace completely is to cut away the doors .Bottom hinge is bolted and bonded to the door inner .Take the door off ,4 bolts into A pillar + the roll pin for the tieback .
You might drift the pins out but need to support the door hinge very well or you will end up breaking the door .
If it will not shift then slit the pins on either side of the pillar mount portion .You should then be able to drift the middle section out on the bench .
Door half is a little more tricky as you cannot really get any force on it .I've slit the hinge to get the pins out then weld up and re drill to suit new oversize pins .
There is a small tophat bush within the hinge designed to take up wear but you will have to live without these after surgery .....
Probably best long term is to have at the doors but make sure hinges are available first