Searching for Keeper for PHP-032-1 Series 92/N92 sliding glass door

We did sell a keeper like this at one time, but it was discontinued and it is no longer something we can source. I'm afraid the style is just a little too old.

Before we call it quits, would it be possible to see a photo of the mortise lock in your door? I might have a couple possible substitutes you can consider but I need to make sure they'll be compatible with your hardware first.