left casement lock broke

help, the lock on our left side kitchen casement window was pullout out of the housing, and the window is still locked.

The picture include some measurements, I think that I need the assembly with the first 2 linkages. The right side of the picture is from the working lock from the right side that I took off.

The linkages are one inch, tied to the lock handle and the lower arm, and the lower arm is approx. 4.5 inch on the bottom run. The lock handle has these numbers stamped on the inside - 45081

thanks for any help that you can offer

Mike