WOW! Now that's what I call a paint job. The folks in Kansas must love it. In order to repair the hinges you have to remove the hole door and frame. If it is affordable and handy I'd replace the hole door. But if money is an issue then looks like you'll have to fix it. The hinges are attached to the door frame. I have to do the same thing to ours. The little hing pins are the week spot on the original doors.

Hi Kelsey, My two cents would be to replace it if you can afford it. Doors can be repaired but some times it is more costly than to simply remove the whole door and frame an replace with new. Replacing it also affords you the opportunity to gauge the condition of the doorway and also do a good job sealing the frame to your RV. There are a few threads on here for repairing and one just a few days ago. Good luck on your project ,it looks to be a very good solid machine and that's half the battle when you want to restore  a vintage Motor home.