I have some ides for mods for my Creality K1:
To attach these mods, I created this mods base. Distance for the holes are 3 cm and 2.12 (3cm / sqrt(2)).
You can't use the original lid with this mod. As the lid restrained filament path way too much, I don't use it anyway. I put my printer in a Creality tent.
Uploading it, I found quite a similar model:
https://www.printables.com/model/480314-creality-k1-gutter-filler-and-small-shelf
The author marked this model as their own original creation.