Sliding patio door hardware replacement

A home owner from Massachusetts says:
February 19, 2020

Couldn't find any markings. I know that the door is from 1984 if that helps. Looking to replace parts identified as "A" and "B", or an entire new unit.

The handle pull holes are 3 7/8" center to center.

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Bob from SWISCO responded:
February 20, 2020

Thanks for posting. See our 82-020 Handle Set. I am afraid the individual components we cannot replace separately. As far as the mortise lock, it looks a lot like our 82-263; but keep in mind this mortise lock as a vertical keyway, whereas yours appears to be at 45 degrees. This might just be due to your mortise lock being broken, but it's worth pointing out. Take a look and let me know what you think. 
A home owner from Massachusetts says:
February 21, 2020
Thank you. I will give it a try.
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Bob from SWISCO responded:
February 24, 2020

Great. Let us know how you make out, and many thanks for considering our business, we appreciate it.
Mortise Style Handle Set, 3-15/16"
Mortise Style Handle Set, 3-15/16"
82-020
$40.72
Mortise Lock, Round Face
Mortise Lock, Round Face
82-263
$30.77
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