I've got the servo and the stl files. I just need to get my printer operating and I'll be on my way, too. I might have to buy another microswitch, but my junk box holds a small momentary action switch. I wonder if that would do the job?

According to the video, the fan duct was only removed for clarity. You should be able to refit it after you have fitted the leveling hardware.

How good are you at changing Arduino files. Remember that you have to modify the config.h file and load of the whole of the new version of the Arduino software.

Old Man Emu