Following Parts are neccesary:
Banana Jacks https://www.amazon.de/dp/B07VJXJHHS/
XT60M Female Connector https://www.noahsrcark.co.uk/products/amassxt60efblack/131444000005431350
M12 Conector with M16x1,5mm Thread https://www.amazon.de/dp/B0CKPM56TG/?th=1
Switch https://www.amazon.de/dp/B0D3T9C18T/
M3 x 8 Countersunk Screws https://www.amazon.de/dp/B0D3HB7D8H/
M3 threaded inserts https://www.amazon.de/dp/B09NYKZGNC/
1mm Metal sheet for Contacts or the original Connector https://www.amazon.de/dp/B09FZBCVF5/
The author marked this model as their own original creation.