Backyard Sliding Door Replacement

A handy person from San Francisco says:
June 8, 2023
I need a replacement part for my backyard sliding door lock. I was recommended a mortise lock and a white handle set? Wanted to check and make sure I am ordering the right parts. Preference would be a latch that goes up/down to lock and unlock like my original (see attached), not a key.

Hope to hear back soon.

Thanks!
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Bob from SWISCO responded:
June 9, 2023

Thanks for posting. I am afraid I don't have a record of what parts you were recommended. Can you tell me what they were? More importantly, can you show me a clearer view of the inner lock or latch that works with this handle set? Can you also confirm the distance between the center of each mounting hole on the handle set? We'll do our best to assist you from there. 
A handy person from San Francisco says:
June 9, 2023
See attached for the recommended parts. If you are asking about the distance from the side-view photo of the handles from each Mount hole, it is 3 and 11/16
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Bob from SWISCO responded:
June 11, 2023

OK that's a big help, thanks. The handle set you were recommended is actually no longer available, but because I have a clear view of your mortise lock, I can offer an alternative. Our 82-030 should work with this set up. It has a hole spacing of 3-15/16"; what's more, the 82-310 key lock can be adapted to its outside pull. This blog article here explains how to do this. 
Sliding Patio Door Handle Set, 3-15/16"
Sliding Patio Door Handle Set, 3-15/16"
82-030
$29.95
Key Lock
Key Lock
82-310
$14.30
White Handle Set, 3-15/16"
White Handle Set, 3-15/16"
82-032
$31.82
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