After a little finesse, I got the remaining hinges off of Patches Body. The old hinges are the small ones in the center of the picture below, they are great for small panels but not that accurate for long doors like the ones pictured.
The new hinges have way more surface glue area and reinforcement to keep the doors working properly.
I still have a bit of epoxy to remove from the inner skins before I mount the new hinges.
I do not know yet if I will use epoxy again or try something else. I also want to install some other servos while I got the doors off.