Sliding glass door

Hi

I'm having a hard time finding replacement parts for my current lock on my sliding glass door. The lock is a dual locked in the door and measures 8 3/4 " and the lock on the frame accepts the dual lock and measures 6 5/8 top to bottom. The internal piece that broke is photo #2. The rotating part which locks the door. If anything, I may want to swap out all of the internal components in the door. Any suggestions? Thank you in advance!