Silver Line patio door lockset

This lockset came with a Silver Line 70 Series 2 panel - 5802 sliding glass patio door purchased in 2013. There seems to be no markings on the set. The interior tail piece does not seem to protrude far enough into the mortise to be able to engage the latching mechanism. The receiver is butchered up as you can see from the photo but with the handle off and the tail piece extended in to the receiver it works fine. I need to find either parts to fix it or a new lockset.