On my BBT TFT35 E3, the display was glued about 2 mm crooked on the foam strips.
To correct this I have printed this frame.
The installation is possible using the original parts (spacer, rear housing cover).
I have used the original Ender 3 (pro) Display-Mount.
The print template was cut out of https://www.thingiverse.com/thing:4137783. Thanks for the exact dimensions!
The author hasn't provided the model origin yet.