Z1OwnersClub GB

Can anyone let me know how to dismantle this seat lock please.
I had a working seat lock, but my powder coater decided to powder coat it and melted all the plastic. I have a working one but the case is broken.
How can I get the working lock and bits out and into the unbroken case.
Cheers

i think you have to remove the aluminium cap from the inside of the lock/ the piece that is left after removing the rotating cam then there is a spring loaded pawl that you have to push into the lock + then insert the key to remove