Sliding glass door handle/lock

We recently purchased an older MCM house. The back wall is dual sliding glass doors that come together in the center. One side has a handle the other side was removed prior to us buying the house. One side is 3 1/2 inches, the other is 4 3/4. I would like to have a key lock on the outside also.

Pics 64-65 are one door and pics 63-59 are the other door.