can't find a keyed lock set to fit my patio door

Can you help? I can't seem to find a keyed locking set for my sliding patio door. The mounting screws are 4 15/16" on center and directly in vertical line with the main keyhole. I don't mind drilling new holes if necessary. The centers of those three holes are only about 3/8" from the edge of the door frame and the old hardware was only 1" wide. The door is 1" thick. Pics attached. Let me know, thanks.