Here are the updated drawings for the brackets:
4400-series Lathe:
http://karimnassar.com/images/makery/workshop/dros/DRO-mounting-4400.pdf
2000-series Mill:
http://karimnassar.com/images/makery/workshop/dros/DRO-mounting-2000.pdf
4400-series Lathe:
http://karimnassar.com/images/makery/workshop/dros/DRO-mounting-4400.pdf
2000-series Mill:
http://karimnassar.com/images/makery/workshop/dros/DRO-mounting-2000.pdf