PLC Program for OTIS Elevator

Hey there I have an interesting project.
I have a 9 stop OTIS elevator that was put into service somewhere around 1958-1960. In 1991-92 the elevator went through some upgrades. Part of that was the addition of a Mitsubishi FX0-30MR PLC.
I've had two mechanics out onsite who were able to bring the elevator back into an operation state under manual control.
(So far we have replaced over 100 relays, installed a new VFD, and braking unit)

Unfortunately the PLC took some sort of hard electrical hit and the relay board has been blown out. After doing some board level troubleshooting, it appears the CPU is completely bad on the CPU board of the PLC. Unfortunately I am not able to make a serial connection to this unit. As soon as it is powered on it goes to a hard stop with a red error light.

To my knowledge the PLC for this elevator does not do a lot. It simply keep track of car positioning and a few other points. I have prints as well as an old ESI program number.

I can arrange access to the elevator and I can also put you in touch with the elevator mechanics who brought the elevator back into manual operation capability.

Ideal Skills and Experience:
- Experience with PLC programming.
- Ability to read and interpret technical prints/schematics.
- Good communication skills for coordinating with mechanics
- Gets personal satisfaction from figuring out strange old puzzles