Hello Claud.

What little I know...

The hinges are attached by bolts with cross screw heads. To remove them access the nuts from inside the wing cubbies.

If there is excessive play in the hinge then this is likely to be wear in the eyes more than the pin. New pin with spacers may be a solution from a local engineering shop.

Bristol Cars well worth a try for new hinges.

Rehanging the doors on other cars requires logic and a bucket of patience. Use wedges to get the gaps even. Running an apprpriate size drill bit around the gaps helps to gauge same. Tighten bolts and pray! Goog luck.