My plan was to replace the original board on my Anycubic Kobra (standard) with a BTT SKR Pico to install Klipper on it.
Feral Enginner (https://www.printables.com/social/378456-feral-engineer/about) was very gracious to help me out making this adapter. It will fit perfectly on the same spot of the original board and it will use the original screws to hold in place.
You will need 4x M2.5 inserts (I used M2.5*6*4) in the Pico holders and you can use the screws that come with in the Pico box.
The author hasn't provided the model origin yet.