Thanks to this great information I was also able to replace my 12.3" CID.
Thanks
mrgicm
So I spent a month designing and releasing some 3D printed parts to solve some of the problems associated with this, if anyone is interested.
I will not distribute these parts, so please print them yourself.
https://www.cocoa.ne.jp/archives/12882
It is written in Japanese, so you can use Chrome's translation function.