Install latch mechanism in right door. The trick to inserting the aft pushrod rack into the third latch is to turn the door 90 degrees so that the rack is hanginging vertically from the pushrod.
Once assembled, the retaining nut on the lock came loose. I needed to disassemble the mechanism. Because the right door appears to be slightly thicker in the lock area, there were not enough threads to engage the nut securely. The solution was to swpot face the area where the nut is to thin the delrin block by 1/16". This was accomp[lished on the Smithy mill with no problems.
Reassembled mechanism using loctite to secure the lock retaining nut.