i took the z840 carrier on thingiverse and changed it to z800.
2 holes of the ssd mount doesnt fit perfectly.
the first one have to move 1mm to the bottom (to the mounting side) and the second ssd hole have to move 3mm to bottom.
but you can mount the first hole if you dont want to change the stl.
i fixed the first hole with a screw and it works.
you have to look that the ssd is not uprising when you mount it to the server.
You have to take one of the blue gum pin out (look at the photo).
Otherwiese modify the stl like i described it.