We've now added the TBM-850 Overhead Panel to our product range ...
This has a slightly different layout to the 900 version that we currently sell, and doesn't contain an ELT section. The other main difference is that the three left-most rocker switches are illuminated.
We ship these panels fully-assembled and with a strengthening section of flat aluminum bar temporarily fitted to help keep them protected from unwanted bending during transit. Once received, however, the slight flexion this panel inevitably has might actually be useful if your cockpit has a curved ceiling!