I originally created this build once in Minecraft 1.12.2 and then later reused it for a 1.19.2 project.

At the time, I had just created it from memory after a vacation visit to the museum. - Have fun.

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You don't know how to add schematic files to your world?

No problem:
You need worldedit on your server as a plugin or in your Minecraft Client as a mod.
Copy the schematics file into your worldedit schematics folder.

Enter in the cosole:
# list your schematics files
/schematic list
# load schematics file
/schematic load <your-desired-schematics-name>
# paste schematic into your world
//paste

other suitable commamds:
//undo


# this you can do before paste rotate schematic with X Y Z
//rotate 90 0 0