A 3D Print at an online Service like https://i.materialise.com/de is About 15€ per plug. The contacts for 400V are Uni F630 from MTA, part number 1107940. For 12V Kostal PLK 14.5, part number 23124734300. The connector for the data is from TE connectivity, part number 1318774-1 for white or 1318774-2 for black.
I have no idea about licenses, but everyone can do what they want with the files. I am not responsible for any damage and do not guarantee any function.