Hey all,
just for the record: On Onefinity Original Series, with the optional 80 mm mount the milling motor clears the stepper cage:
And if you upgrade to Z-20 heavy Z assembly, with both 65 mm and 80 mm mounts the milling motor clears the stepper cage (the 65 mm and 80 mm mounts for Z-20 Z assembly are not identical to those of Original Z-16 Z assembly!).