Rudder Cheeks Tiller Hole Location


The cheeks were made from a slab of Osage Orange and now moving to locate and drill for the bolts.
Question, as I don't have the original cheeks - can someone provide the location of the tiller bolt hole by giving me the vertical and horizontal dimension to the bolt? The boat was built in 1982. I can approximate it from my photo pattern which unfortunately has the top foreshortened but thought better to check before drilling. Also fabricated a new motor mount to match but thicker. 

Hull 147