I would instead recommend upgrading the IPC firmware to a 2017+ for the proper digital speedo, pulling it out and 3d printing (or ordering from an online 3d printing service) a larger frame, as behind the “analog” speedo/tach, it’s just more screen. (I’ll do some digging for the print file). If you do the frame mod, a “skin” for the cluster will be needed for it to look proper and you’d do that via PimpMyFord. The mod is really popular over in Europe with the Ford Mondeo (basically a fusion with mkz cluster). There’s someone named “MA MODS” on Facebook that’s extremely helpful and am currently working with them for a design on mine.
Here’s some pics of the finished product’s with and without the frame mod in other Z’s.