Displaying heavy antique wood doors
To use as “real” doors, I’d use a pivot hinge. Pivot hinges are set in the top and bottom of doors, so they would not mare the face of the doors.
I’d use the hinge rated for the heaviest doors. Something similar to this:
https://www.betterbuildinghardware.com/products/pivot-hinge-fritsjurgens-systemone?gclid=CjwKCAiAqJn9BRB0EiwAJ1SztV-DFU2tcIrLUFOshOxARq3x3Cfwoy6-ChMV48ALM-9EQAwDa4XZtxoC0IoQAvD_BwE
Three doors seem like an odd combination for doors, especially as narrow as they seem to be.
Edit:
If the doors are going to be decorative, then perhaps they should be installed (mounted) “on” the wall instead of “in” the wall. That includes mounting a simulated door frame around the doors.
I’d use wood trim, stained to match the doors and framed out all the way around the 3 doors. The trim could mount flush “on” the wall so it appears like a door casing.