I have some ides for mods for my Creality K1:

• spool holder placement on the right side of the printer https://www.printables.com/model/496324-creality-k1-side-load
• high quality filament runout sensor
• wire guide instead of drag chain

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