This model barely fit in the mk3 bed size, and may be a bit flexible but having support under helped
You will need 6 8mm m3 screw and 6 m3 square nuts to bolt the part together.
The switch is meant to slide from the front, and be locked from under by twist lock.
I used a 5c € coin event if it was originally modeled for a 2€ coins
Original non-spliced model and step file are available for you to improve or cut it for your printer.
The author marked this model as their own original creation.