Need Set for handle, lever, lock and key for this door

Thanks for posting. What exactly is the issue with the door? Is it simply unable to lock? Is this the original handle set that came with the door, or was it also replaced along with the new mortise lock? A picture of the mortise lock would also be helpful. Many thanks.  

Well if the mortise is new I doubt it's the issue; the 82-218 certainly should be compatible with this type of handle set. Most likely when the mortise lock was installed, the handle was reinstalled improperly. Sometimes the key cylinder can become askew during installation, which renders them inoperable. That would explain the symptoms you're experiencing. The only solution would to carefully reinstall the current handle set. Now if this doesn't work, or if the current handle set is damaged, then you could replace it with something like our 82-086; but I don't yet believe that should be necessary. Try reinstalling the old handle set first to see if that improves operation. See the video below for the installation of a similar handle set as a reference.

Sounds like a plan! Please let us know how it works out, or if you run into any issues. If my hypothesis was wrong then we'll work on a new one. We'll definitely get this handle set working for you no matter what.