Krestmark Patio door replacement parts

A home owner from Jacksonville, Arkansas says:
I'm missing the part that's on the frame of sliding door that catches the latch and need replacement handles for both sides of door including lock it's a krestmark very old. Please help pictures attached
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Dave Sr. from SWISCO responded:

You are correct. This handle set is very old, and I don't believe they are made anymore. Start off with taking a look at our 82-005 surface mount handle assembly and 82-042 outside pull. You want to compare your measurements with ours, especially the measurement between screw holes. Get back to us and let us know if you believe you could make these parts work on your door. 

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
How to Replace a Surface Mount Handle Assembly
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How to maintain a sliding glass door
How to maintain a sliding glass door
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