Sliding (up and down) screen door lock

A quick learner from La Mesa, CA says:
I need to replace a simple, keyless lock on my sliding screen door.
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Bob from SWISCO responded:

Take a look at our 83-038 Screen Door Latch Lever. This looks awfully similar, but let me know what you think. 

A quick learner from KS says:
This is our lever but it's the latch inside the door that is broken off.
Can't seem to locate the lock/latch for this on your site.
The latch/lever on the frame side is not broken.
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Bob from SWISCO responded:

I am afraid the other hardware that works with the 83-038 was discontinued some time ago and is no longer available. I don't believe it's made any longer. An alternative solution would be to see if you could adapt a totally different handle set to the door. See the 82-005. This is a surface-mount handle set, meaning the lock is built directly into the inside pull. Take a look and see if you think this could work for you. 

Reversing the thumb lock on the Swisco 82-005 Sliding Door Handle
Reversing the thumb lock on the Swisco 82-005 Sliding Door Handle
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How to Replace a Surface Mount Handle Assembly
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