This is a replaceable top for the motorized train chassis of the Duplo Sets 10874 or 10875.

No MMU / AMS required, just some screws (Spax 3x16mm), colored filament and glue.

(the face needs to be painted if you want to)

How to build it:

1. print all the parts in the color of your liking
2. glue in the windows, numbers, coal, roof and inserts in the base
3. glue in the smokebox-rings and the steam dome into the smokebox
4. screw in the base to the undercarriage (from the underside of it)
5. slide the smokebox and chimney into the base and screw it on
6. optional: paint the face
7. glue the face onto the chimney faceplate
8. glue the light onto the undercarriage

Done :)