Alrighty, here's a few drawings and dimensions:



Higher quality PDF here.

Accuracy on most dimensions should be about +/- 0.01 mm. The main outside dimensions (L, W, H) are pretty solid as they were easy to get the callipers around. Some of the others I had to eyeball but they should be fine for this purpose. The original is in Visio so I can remeasure anything if there's something I missed.

Also, the little step at at rear of the head is probably worth including as it makes the head sit a bit lower, hiding the hinged stem that it sits on.