You would need to print:
Important information:
The MMU 4lane model should be printed horizontally to make the inside layers create a smooth path for the filament.
BOM:
The rest of the necessary parts to run this mod can be found here in the original PICO MMU GitHub repository.
Sherpa Mini Extruder can be found on Annex-Engineering GitHub.
Credits to LH
The author remixed this model.
Added support for Sherpa Mini Extruder with 4 lane adapter