Sliding door handle

See if your handle matches up to our 82-063, which looks somewhat similar. If not, I would suggest using one of the surface mounted handles like our 82-005 or maybe even the 82-016. These are nice because they have their own self-contained mortise that sits outside the door, so it doesn't need to interact with any mechanism in the door itself. However looking at your door jamb you will have to adapt the keeper that comes with this type of handle to be compatible with your door.

I'm sorry that we couldn't find a better option for you.