In search of replacement sliding glass door hardware

Hello! Your original lockset looks very similar to our 82-001 , which is used by a brand called Crossly. There's a good chance that's who made your door. We sell this handle set, as well as a keyed version under our 82-001K . We also sell the keeper you show, which is our 89-004 . These doors also commonly use the 81-001 roller, but that's no guarantee.

I'm not sure what else you made need, but we usually like to take these sorts of cases on a part-by-part basis. If you show us what you have, we will do our best to match it up. Just let me know!